216940425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2203}}^1$

素因数の和:2330

約数の個数: 48

約数和(自身を含む): 390266688

約数和(自身を除く): 173326263

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 101, 195, 303, 325, 505, 975, 1313, 1515, 2203, 2525, 3939, 6565, 6609, 7575, 11015, 19695, 28639, 32825, 33045, 55075, 85917, 98475, 143195, 165225, 222503, 429585, 667509, 715975, 1112515, 2147925, 2892539, 3337545, 5562575, 8677617, 14462695, 16687725, 43388085, 72313475, 216940425]

約数ペア:

[(1, 216940425), (3, 72313475), (5, 43388085), (13, 16687725), (15, 14462695), (25, 8677617), (39, 5562575), (65, 3337545), (75, 2892539), (101, 2147925), (195, 1112515), (303, 715975), (325, 667509), (505, 429585), (975, 222503), (1313, 165225), (1515, 143195), (2203, 98475), (2525, 85917), (3939, 55075), (6565, 33045), (6609, 32825), (7575, 28639), (11015, 19695)]