19903260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 192

約数和(自身を含む): 67737600

約数和(自身を除く): 47834340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 19, 20, 26, 30, 34, 38, 39, 51, 52, 57, 60, 65, 68, 76, 78, 79, 85, 95, 102, 114, 130, 156, 158, 170, 190, 195, 204, 221, 228, 237, 247, 255, 260, 285, 316, 323, 340, 380, 390, 395, 442, 474, 494, 510, 570, 646, 663, 741, 780, 790, 884, 948, 969, 988, 1020, 1027, 1105, 1140, 1185, 1235, 1292, 1326, 1343, 1482, 1501, 1580, 1615, 1938, 2054, 2210, 2370, 2470, 2652, 2686, 2964, 3002, 3081, 3230, 3315, 3705, 3876, 4029, 4108, 4199, 4420, 4503, 4740, 4845, 4940, 5135, 5372, 6004, 6162, 6460, 6630, 6715, 7410, 7505, 8058, 8398, 9006, 9690, 10270, 12324, 12597, 13260, 13430, 14820, 15010, 15405, 16116, 16796, 17459, 18012, 19380, 19513, 20145, 20540, 20995, 22515, 25194, 25517, 26860, 30020, 30810, 34918, 39026, 40290, 41990, 45030, 50388, 51034, 52377, 58539, 61620, 62985, 69836, 76551, 78052, 80580, 83980, 87295, 90060, 97565, 102068, 104754, 117078, 125970, 127585, 153102, 174590, 195130, 209508, 234156, 251940, 255170, 261885, 292695, 306204, 331721, 349180, 382755, 390260, 510340, 523770, 585390, 663442, 765510, 995163, 1047540, 1170780, 1326884, 1531020, 1658605, 1990326, 3317210, 3980652, 4975815, 6634420, 9951630, 19903260]

約数ペア:

[(1, 19903260), (2, 9951630), (3, 6634420), (4, 4975815), (5, 3980652), (6, 3317210), (10, 1990326), (12, 1658605), (13, 1531020), (15, 1326884), (17, 1170780), (19, 1047540), (20, 995163), (26, 765510), (30, 663442), (34, 585390), (38, 523770), (39, 510340), (51, 390260), (52, 382755), (57, 349180), (60, 331721), (65, 306204), (68, 292695), (76, 261885), (78, 255170), (79, 251940), (85, 234156), (95, 209508), (102, 195130), (114, 174590), (130, 153102), (156, 127585), (158, 125970), (170, 117078), (190, 104754), (195, 102068), (204, 97565), (221, 90060), (228, 87295), (237, 83980), (247, 80580), (255, 78052), (260, 76551), (285, 69836), (316, 62985), (323, 61620), (340, 58539), (380, 52377), (390, 51034), (395, 50388), (442, 45030), (474, 41990), (494, 40290), (510, 39026), (570, 34918), (646, 30810), (663, 30020), (741, 26860), (780, 25517), (790, 25194), (884, 22515), (948, 20995), (969, 20540), (988, 20145), (1020, 19513), (1027, 19380), (1105, 18012), (1140, 17459), (1185, 16796), (1235, 16116), (1292, 15405), (1326, 15010), (1343, 14820), (1482, 13430), (1501, 13260), (1580, 12597), (1615, 12324), (1938, 10270), (2054, 9690), (2210, 9006), (2370, 8398), (2470, 8058), (2652, 7505), (2686, 7410), (2964, 6715), (3002, 6630), (3081, 6460), (3230, 6162), (3315, 6004), (3705, 5372), (3876, 5135), (4029, 4940), (4108, 4845), (4199, 4740), (4420, 4503)]