161310940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{241}}^1\times {\mathrm{683}}^1$

素因数の和:947

約数の個数: 72

約数和(自身を含む): 396274032

約数和(自身を除く): 234963092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 241, 245, 482, 490, 683, 964, 980, 1205, 1366, 1687, 2410, 2732, 3374, 3415, 4781, 4820, 6748, 6830, 8435, 9562, 11809, 13660, 16870, 19124, 23618, 23905, 33467, 33740, 47236, 47810, 59045, 66934, 95620, 118090, 133868, 164603, 167335, 236180, 329206, 334670, 658412, 669340, 823015, 1152221, 1646030, 2304442, 3292060, 4608884, 5761105, 8065547, 11522210, 16131094, 23044420, 32262188, 40327735, 80655470, 161310940]

約数ペア:

[(1, 161310940), (2, 80655470), (4, 40327735), (5, 32262188), (7, 23044420), (10, 16131094), (14, 11522210), (20, 8065547), (28, 5761105), (35, 4608884), (49, 3292060), (70, 2304442), (98, 1646030), (140, 1152221), (196, 823015), (241, 669340), (245, 658412), (482, 334670), (490, 329206), (683, 236180), (964, 167335), (980, 164603), (1205, 133868), (1366, 118090), (1687, 95620), (2410, 66934), (2732, 59045), (3374, 47810), (3415, 47236), (4781, 33740), (4820, 33467), (6748, 23905), (6830, 23618), (8435, 19124), (9562, 16870), (11809, 13660)]