15238020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 51020928

約数和(自身を除く): 35782908

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 71, 73, 84, 98, 105, 140, 142, 146, 147, 196, 210, 213, 219, 245, 284, 292, 294, 355, 365, 420, 426, 438, 490, 497, 511, 588, 710, 730, 735, 852, 876, 980, 994, 1022, 1065, 1095, 1420, 1460, 1470, 1491, 1533, 1988, 2044, 2130, 2190, 2485, 2555, 2940, 2982, 3066, 3479, 3577, 4260, 4380, 4970, 5110, 5183, 5964, 6132, 6958, 7154, 7455, 7665, 9940, 10220, 10366, 10437, 10731, 13916, 14308, 14910, 15330, 15549, 17395, 17885, 20732, 20874, 21462, 25915, 29820, 30660, 31098, 34790, 35770, 36281, 41748, 42924, 51830, 52185, 53655, 62196, 69580, 71540, 72562, 77745, 103660, 104370, 107310, 108843, 145124, 155490, 181405, 208740, 214620, 217686, 253967, 310980, 362810, 435372, 507934, 544215, 725620, 761901, 1015868, 1088430, 1269835, 1523802, 2176860, 2539670, 3047604, 3809505, 5079340, 7619010, 15238020]

約数ペア:

[(1, 15238020), (2, 7619010), (3, 5079340), (4, 3809505), (5, 3047604), (6, 2539670), (7, 2176860), (10, 1523802), (12, 1269835), (14, 1088430), (15, 1015868), (20, 761901), (21, 725620), (28, 544215), (30, 507934), (35, 435372), (42, 362810), (49, 310980), (60, 253967), (70, 217686), (71, 214620), (73, 208740), (84, 181405), (98, 155490), (105, 145124), (140, 108843), (142, 107310), (146, 104370), (147, 103660), (196, 77745), (210, 72562), (213, 71540), (219, 69580), (245, 62196), (284, 53655), (292, 52185), (294, 51830), (355, 42924), (365, 41748), (420, 36281), (426, 35770), (438, 34790), (490, 31098), (497, 30660), (511, 29820), (588, 25915), (710, 21462), (730, 20874), (735, 20732), (852, 17885), (876, 17395), (980, 15549), (994, 15330), (1022, 14910), (1065, 14308), (1095, 13916), (1420, 10731), (1460, 10437), (1470, 10366), (1491, 10220), (1533, 9940), (1988, 7665), (2044, 7455), (2130, 7154), (2190, 6958), (2485, 6132), (2555, 5964), (2940, 5183), (2982, 5110), (3066, 4970), (3479, 4380), (3577, 4260)]