7477990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 64

約数和(自身を含む): 15748992

約数和(自身を除く): 8271002

約数列:

[1, 2, 5, 10, 13, 23, 26, 41, 46, 61, 65, 82, 115, 122, 130, 205, 230, 299, 305, 410, 533, 598, 610, 793, 943, 1066, 1403, 1495, 1586, 1886, 2501, 2665, 2806, 2990, 3965, 4715, 5002, 5330, 7015, 7930, 9430, 12259, 12505, 14030, 18239, 24518, 25010, 32513, 36478, 57523, 61295, 65026, 91195, 115046, 122590, 162565, 182390, 287615, 325130, 575230, 747799, 1495598, 3738995, 7477990]

約数ペア:

[(1, 7477990), (2, 3738995), (5, 1495598), (10, 747799), (13, 575230), (23, 325130), (26, 287615), (41, 182390), (46, 162565), (61, 122590), (65, 115046), (82, 91195), (115, 65026), (122, 61295), (130, 57523), (205, 36478), (230, 32513), (299, 25010), (305, 24518), (410, 18239), (533, 14030), (598, 12505), (610, 12259), (793, 9430), (943, 7930), (1066, 7015), (1403, 5330), (1495, 5002), (1586, 4715), (1886, 3965), (2501, 2990), (2665, 2806)]