31091840

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:170

約数の個数: 128

約数和(自身を含む): 83023920

約数和(自身を除く): 51932080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 64, 65, 74, 80, 101, 104, 128, 130, 148, 160, 185, 202, 208, 260, 296, 320, 370, 404, 416, 481, 505, 520, 592, 640, 740, 808, 832, 962, 1010, 1040, 1184, 1313, 1480, 1616, 1664, 1924, 2020, 2080, 2368, 2405, 2626, 2960, 3232, 3737, 3848, 4040, 4160, 4736, 4810, 5252, 5920, 6464, 6565, 7474, 7696, 8080, 8320, 9620, 10504, 11840, 12928, 13130, 14948, 15392, 16160, 18685, 19240, 21008, 23680, 26260, 29896, 30784, 32320, 37370, 38480, 42016, 48581, 52520, 59792, 61568, 64640, 74740, 76960, 84032, 97162, 105040, 119584, 149480, 153920, 168064, 194324, 210080, 239168, 242905, 298960, 307840, 388648, 420160, 478336, 485810, 597920, 777296, 840320, 971620, 1195840, 1554592, 1943240, 2391680, 3109184, 3886480, 6218368, 7772960, 15545920, 31091840]

約数ペア:

[(1, 31091840), (2, 15545920), (4, 7772960), (5, 6218368), (8, 3886480), (10, 3109184), (13, 2391680), (16, 1943240), (20, 1554592), (26, 1195840), (32, 971620), (37, 840320), (40, 777296), (52, 597920), (64, 485810), (65, 478336), (74, 420160), (80, 388648), (101, 307840), (104, 298960), (128, 242905), (130, 239168), (148, 210080), (160, 194324), (185, 168064), (202, 153920), (208, 149480), (260, 119584), (296, 105040), (320, 97162), (370, 84032), (404, 76960), (416, 74740), (481, 64640), (505, 61568), (520, 59792), (592, 52520), (640, 48581), (740, 42016), (808, 38480), (832, 37370), (962, 32320), (1010, 30784), (1040, 29896), (1184, 26260), (1313, 23680), (1480, 21008), (1616, 19240), (1664, 18685), (1924, 16160), (2020, 15392), (2080, 14948), (2368, 13130), (2405, 12928), (2626, 11840), (2960, 10504), (3232, 9620), (3737, 8320), (3848, 8080), (4040, 7696), (4160, 7474), (4736, 6565), (4810, 6464), (5252, 5920)]