20659080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:104

約数の個数: 256

約数和(自身を含む): 76204800

約数和(自身を除く): 55545720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 19, 20, 24, 26, 30, 34, 38, 39, 40, 41, 51, 52, 57, 60, 65, 68, 76, 78, 82, 85, 95, 102, 104, 114, 120, 123, 130, 136, 152, 156, 164, 170, 190, 195, 204, 205, 221, 228, 246, 247, 255, 260, 285, 312, 323, 328, 340, 380, 390, 408, 410, 442, 456, 492, 494, 510, 520, 533, 570, 615, 646, 663, 680, 697, 741, 760, 779, 780, 820, 884, 969, 984, 988, 1020, 1066, 1105, 1140, 1230, 1235, 1292, 1326, 1394, 1482, 1558, 1560, 1599, 1615, 1640, 1768, 1938, 1976, 2040, 2091, 2132, 2210, 2280, 2337, 2460, 2470, 2584, 2652, 2665, 2788, 2964, 3116, 3198, 3230, 3315, 3485, 3705, 3876, 3895, 4182, 4199, 4264, 4420, 4674, 4845, 4920, 4940, 5304, 5330, 5576, 5928, 6232, 6396, 6460, 6630, 6970, 7410, 7752, 7790, 7995, 8364, 8398, 8840, 9061, 9348, 9690, 9880, 10127, 10455, 10660, 11685, 12597, 12792, 12920, 13243, 13260, 13940, 14820, 15580, 15990, 16728, 16796, 18122, 18696, 19380, 20254, 20910, 20995, 21320, 23370, 25194, 26486, 26520, 27183, 27880, 29640, 30381, 31160, 31980, 33592, 36244, 38760, 39729, 40508, 41820, 41990, 45305, 46740, 50388, 50635, 52972, 54366, 60762, 62985, 63960, 66215, 72488, 79458, 81016, 83640, 83980, 90610, 93480, 100776, 101270, 105944, 108732, 121524, 125970, 132430, 135915, 151905, 158916, 167960, 172159, 181220, 198645, 202540, 217464, 243048, 251940, 264860, 271830, 303810, 317832, 344318, 362440, 397290, 405080, 503880, 516477, 529720, 543660, 607620, 688636, 794580, 860795, 1032954, 1087320, 1215240, 1377272, 1589160, 1721590, 2065908, 2582385, 3443180, 4131816, 5164770, 6886360, 10329540, 20659080]

約数ペア:

[(1, 20659080), (2, 10329540), (3, 6886360), (4, 5164770), (5, 4131816), (6, 3443180), (8, 2582385), (10, 2065908), (12, 1721590), (13, 1589160), (15, 1377272), (17, 1215240), (19, 1087320), (20, 1032954), (24, 860795), (26, 794580), (30, 688636), (34, 607620), (38, 543660), (39, 529720), (40, 516477), (41, 503880), (51, 405080), (52, 397290), (57, 362440), (60, 344318), (65, 317832), (68, 303810), (76, 271830), (78, 264860), (82, 251940), (85, 243048), (95, 217464), (102, 202540), (104, 198645), (114, 181220), (120, 172159), (123, 167960), (130, 158916), (136, 151905), (152, 135915), (156, 132430), (164, 125970), (170, 121524), (190, 108732), (195, 105944), (204, 101270), (205, 100776), (221, 93480), (228, 90610), (246, 83980), (247, 83640), (255, 81016), (260, 79458), (285, 72488), (312, 66215), (323, 63960), (328, 62985), (340, 60762), (380, 54366), (390, 52972), (408, 50635), (410, 50388), (442, 46740), (456, 45305), (492, 41990), (494, 41820), (510, 40508), (520, 39729), (533, 38760), (570, 36244), (615, 33592), (646, 31980), (663, 31160), (680, 30381), (697, 29640), (741, 27880), (760, 27183), (779, 26520), (780, 26486), (820, 25194), (884, 23370), (969, 21320), (984, 20995), (988, 20910), (1020, 20254), (1066, 19380), (1105, 18696), (1140, 18122), (1230, 16796), (1235, 16728), (1292, 15990), (1326, 15580), (1394, 14820), (1482, 13940), (1558, 13260), (1560, 13243), (1599, 12920), (1615, 12792), (1640, 12597), (1768, 11685), (1938, 10660), (1976, 10455), (2040, 10127), (2091, 9880), (2132, 9690), (2210, 9348), (2280, 9061), (2337, 8840), (2460, 8398), (2470, 8364), (2584, 7995), (2652, 7790), (2665, 7752), (2788, 7410), (2964, 6970), (3116, 6630), (3198, 6460), (3230, 6396), (3315, 6232), (3485, 5928), (3705, 5576), (3876, 5330), (3895, 5304), (4182, 4940), (4199, 4920), (4264, 4845), (4420, 4674)]