20021820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1$

素因数の和:244

約数の個数: 192

約数和(自身を含む): 73006080

約数和(自身を除く): 52984260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 19, 20, 21, 26, 28, 30, 35, 38, 39, 42, 52, 57, 60, 65, 70, 76, 78, 84, 91, 95, 105, 114, 130, 133, 140, 156, 182, 190, 193, 195, 210, 228, 247, 260, 266, 273, 285, 364, 380, 386, 390, 399, 420, 455, 494, 532, 546, 570, 579, 665, 741, 772, 780, 798, 910, 965, 988, 1092, 1140, 1158, 1235, 1330, 1351, 1365, 1482, 1596, 1729, 1820, 1930, 1995, 2316, 2470, 2509, 2660, 2702, 2730, 2895, 2964, 3458, 3667, 3705, 3860, 3990, 4053, 4940, 5018, 5187, 5404, 5460, 5790, 6755, 6916, 7334, 7410, 7527, 7980, 8106, 8645, 10036, 10374, 11001, 11580, 12545, 13510, 14668, 14820, 15054, 16212, 17290, 17563, 18335, 20265, 20748, 22002, 25090, 25669, 25935, 27020, 30108, 34580, 35126, 36670, 37635, 40530, 44004, 47671, 50180, 51338, 51870, 52689, 55005, 70252, 73340, 75270, 77007, 81060, 87815, 95342, 102676, 103740, 105378, 110010, 128345, 143013, 150540, 154014, 175630, 190684, 210756, 220020, 238355, 256690, 263445, 286026, 308028, 333697, 351260, 385035, 476710, 513380, 526890, 572052, 667394, 715065, 770070, 953420, 1001091, 1053780, 1334788, 1430130, 1540140, 1668485, 2002182, 2860260, 3336970, 4004364, 5005455, 6673940, 10010910, 20021820]

約数ペア:

[(1, 20021820), (2, 10010910), (3, 6673940), (4, 5005455), (5, 4004364), (6, 3336970), (7, 2860260), (10, 2002182), (12, 1668485), (13, 1540140), (14, 1430130), (15, 1334788), (19, 1053780), (20, 1001091), (21, 953420), (26, 770070), (28, 715065), (30, 667394), (35, 572052), (38, 526890), (39, 513380), (42, 476710), (52, 385035), (57, 351260), (60, 333697), (65, 308028), (70, 286026), (76, 263445), (78, 256690), (84, 238355), (91, 220020), (95, 210756), (105, 190684), (114, 175630), (130, 154014), (133, 150540), (140, 143013), (156, 128345), (182, 110010), (190, 105378), (193, 103740), (195, 102676), (210, 95342), (228, 87815), (247, 81060), (260, 77007), (266, 75270), (273, 73340), (285, 70252), (364, 55005), (380, 52689), (386, 51870), (390, 51338), (399, 50180), (420, 47671), (455, 44004), (494, 40530), (532, 37635), (546, 36670), (570, 35126), (579, 34580), (665, 30108), (741, 27020), (772, 25935), (780, 25669), (798, 25090), (910, 22002), (965, 20748), (988, 20265), (1092, 18335), (1140, 17563), (1158, 17290), (1235, 16212), (1330, 15054), (1351, 14820), (1365, 14668), (1482, 13510), (1596, 12545), (1729, 11580), (1820, 11001), (1930, 10374), (1995, 10036), (2316, 8645), (2470, 8106), (2509, 7980), (2660, 7527), (2702, 7410), (2730, 7334), (2895, 6916), (2964, 6755), (3458, 5790), (3667, 5460), (3705, 5404), (3860, 5187), (3990, 5018), (4053, 4940)]