20878104

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1097}}^1$

素因数の和:1180

約数の個数: 64

約数和(自身を含む): 57183840

約数和(自身を除く): 36305736

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 61, 78, 104, 122, 156, 183, 244, 312, 366, 488, 732, 793, 1097, 1464, 1586, 2194, 2379, 3172, 3291, 4388, 4758, 6344, 6582, 8776, 9516, 13164, 14261, 19032, 26328, 28522, 42783, 57044, 66917, 85566, 114088, 133834, 171132, 200751, 267668, 342264, 401502, 535336, 803004, 869921, 1606008, 1739842, 2609763, 3479684, 5219526, 6959368, 10439052, 20878104]

約数ペア:

[(1, 20878104), (2, 10439052), (3, 6959368), (4, 5219526), (6, 3479684), (8, 2609763), (12, 1739842), (13, 1606008), (24, 869921), (26, 803004), (39, 535336), (52, 401502), (61, 342264), (78, 267668), (104, 200751), (122, 171132), (156, 133834), (183, 114088), (244, 85566), (312, 66917), (366, 57044), (488, 42783), (732, 28522), (793, 26328), (1097, 19032), (1464, 14261), (1586, 13164), (2194, 9516), (2379, 8776), (3172, 6582), (3291, 6344), (4388, 4758)]