18604040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:319

約数の個数: 128

約数和(自身を含む): 54432000

約数和(自身を除く): 35827960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 35, 38, 40, 52, 56, 65, 70, 76, 91, 95, 104, 130, 133, 140, 152, 182, 190, 247, 260, 266, 269, 280, 364, 380, 455, 494, 520, 532, 538, 665, 728, 760, 910, 988, 1064, 1076, 1235, 1330, 1345, 1729, 1820, 1883, 1976, 2152, 2470, 2660, 2690, 3458, 3497, 3640, 3766, 4940, 5111, 5320, 5380, 6916, 6994, 7532, 8645, 9415, 9880, 10222, 10760, 13832, 13988, 15064, 17290, 17485, 18830, 20444, 24479, 25555, 27976, 34580, 34970, 35777, 37660, 40888, 48958, 51110, 66443, 69160, 69940, 71554, 75320, 97916, 102220, 122395, 132886, 139880, 143108, 178885, 195832, 204440, 244790, 265772, 286216, 332215, 357770, 465101, 489580, 531544, 664430, 715540, 930202, 979160, 1328860, 1431080, 1860404, 2325505, 2657720, 3720808, 4651010, 9302020, 18604040]

約数ペア:

[(1, 18604040), (2, 9302020), (4, 4651010), (5, 3720808), (7, 2657720), (8, 2325505), (10, 1860404), (13, 1431080), (14, 1328860), (19, 979160), (20, 930202), (26, 715540), (28, 664430), (35, 531544), (38, 489580), (40, 465101), (52, 357770), (56, 332215), (65, 286216), (70, 265772), (76, 244790), (91, 204440), (95, 195832), (104, 178885), (130, 143108), (133, 139880), (140, 132886), (152, 122395), (182, 102220), (190, 97916), (247, 75320), (260, 71554), (266, 69940), (269, 69160), (280, 66443), (364, 51110), (380, 48958), (455, 40888), (494, 37660), (520, 35777), (532, 34970), (538, 34580), (665, 27976), (728, 25555), (760, 24479), (910, 20444), (988, 18830), (1064, 17485), (1076, 17290), (1235, 15064), (1330, 13988), (1345, 13832), (1729, 10760), (1820, 10222), (1883, 9880), (1976, 9415), (2152, 8645), (2470, 7532), (2660, 6994), (2690, 6916), (3458, 5380), (3497, 5320), (3640, 5111), (3766, 4940)]