1297379980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{18413}}^1$

素因数の和:18706

約数の個数: 48

約数和(自身を含む): 2945061504

約数和(自身を除く): 1647681524

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 271, 542, 1084, 1355, 2710, 3523, 5420, 7046, 14092, 17615, 18413, 35230, 36826, 70460, 73652, 92065, 184130, 239369, 368260, 478738, 957476, 1196845, 2393690, 4787380, 4989923, 9979846, 19959692, 24949615, 49899230, 64868999, 99798460, 129737998, 259475996, 324344995, 648689990, 1297379980]

約数ペア:

[(1, 1297379980), (2, 648689990), (4, 324344995), (5, 259475996), (10, 129737998), (13, 99798460), (20, 64868999), (26, 49899230), (52, 24949615), (65, 19959692), (130, 9979846), (260, 4989923), (271, 4787380), (542, 2393690), (1084, 1196845), (1355, 957476), (2710, 478738), (3523, 368260), (5420, 239369), (7046, 184130), (14092, 92065), (17615, 73652), (18413, 70460), (35230, 36826)]