31913440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:324

約数の個数: 96

約数和(自身を含む): 82766880

約数和(自身を除く): 50853440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 67, 80, 104, 130, 134, 160, 208, 229, 260, 268, 335, 416, 458, 520, 536, 670, 871, 916, 1040, 1072, 1145, 1340, 1742, 1832, 2080, 2144, 2290, 2680, 2977, 3484, 3664, 4355, 4580, 5360, 5954, 6968, 7328, 8710, 9160, 10720, 11908, 13936, 14885, 15343, 17420, 18320, 23816, 27872, 29770, 30686, 34840, 36640, 47632, 59540, 61372, 69680, 76715, 95264, 119080, 122744, 139360, 153430, 199459, 238160, 245488, 306860, 398918, 476320, 490976, 613720, 797836, 997295, 1227440, 1595672, 1994590, 2454880, 3191344, 3989180, 6382688, 7978360, 15956720, 31913440]

約数ペア:

[(1, 31913440), (2, 15956720), (4, 7978360), (5, 6382688), (8, 3989180), (10, 3191344), (13, 2454880), (16, 1994590), (20, 1595672), (26, 1227440), (32, 997295), (40, 797836), (52, 613720), (65, 490976), (67, 476320), (80, 398918), (104, 306860), (130, 245488), (134, 238160), (160, 199459), (208, 153430), (229, 139360), (260, 122744), (268, 119080), (335, 95264), (416, 76715), (458, 69680), (520, 61372), (536, 59540), (670, 47632), (871, 36640), (916, 34840), (1040, 30686), (1072, 29770), (1145, 27872), (1340, 23816), (1742, 18320), (1832, 17420), (2080, 15343), (2144, 14885), (2290, 13936), (2680, 11908), (2977, 10720), (3484, 9160), (3664, 8710), (4355, 7328), (4580, 6968), (5360, 5954)]