245364340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{229}}^1\times {\mathrm{317}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 562154040

約数和(自身を除く): 316789700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 229, 260, 317, 338, 458, 634, 676, 845, 916, 1145, 1268, 1585, 1690, 2290, 2977, 3170, 3380, 4121, 4580, 5954, 6340, 8242, 11908, 14885, 16484, 20605, 29770, 38701, 41210, 53573, 59540, 72593, 77402, 82420, 107146, 145186, 154804, 193505, 214292, 267865, 290372, 362965, 387010, 535730, 725930, 774020, 943709, 1071460, 1451860, 1887418, 3774836, 4718545, 9437090, 12268217, 18874180, 24536434, 49072868, 61341085, 122682170, 245364340]

約数ペア:

[(1, 245364340), (2, 122682170), (4, 61341085), (5, 49072868), (10, 24536434), (13, 18874180), (20, 12268217), (26, 9437090), (52, 4718545), (65, 3774836), (130, 1887418), (169, 1451860), (229, 1071460), (260, 943709), (317, 774020), (338, 725930), (458, 535730), (634, 387010), (676, 362965), (845, 290372), (916, 267865), (1145, 214292), (1268, 193505), (1585, 154804), (1690, 145186), (2290, 107146), (2977, 82420), (3170, 77402), (3380, 72593), (4121, 59540), (4580, 53573), (5954, 41210), (6340, 38701), (8242, 29770), (11908, 20605), (14885, 16484)]