31214680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:209

約数の個数: 128

約数和(自身を含む): 86676480

約数和(自身を除く): 55461800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 37, 40, 46, 56, 70, 74, 92, 115, 131, 140, 148, 161, 184, 185, 230, 259, 262, 280, 296, 322, 370, 460, 518, 524, 644, 655, 740, 805, 851, 917, 920, 1036, 1048, 1288, 1295, 1310, 1480, 1610, 1702, 1834, 2072, 2590, 2620, 3013, 3220, 3404, 3668, 4255, 4585, 4847, 5180, 5240, 5957, 6026, 6440, 6808, 7336, 8510, 9170, 9694, 10360, 11914, 12052, 15065, 17020, 18340, 19388, 21091, 23828, 24104, 24235, 29785, 30130, 33929, 34040, 36680, 38776, 42182, 47656, 48470, 59570, 60260, 67858, 84364, 96940, 105455, 111481, 119140, 120520, 135716, 168728, 169645, 193880, 210910, 222962, 238280, 271432, 339290, 421820, 445924, 557405, 678580, 780367, 843640, 891848, 1114810, 1357160, 1560734, 2229620, 3121468, 3901835, 4459240, 6242936, 7803670, 15607340, 31214680]

約数ペア:

[(1, 31214680), (2, 15607340), (4, 7803670), (5, 6242936), (7, 4459240), (8, 3901835), (10, 3121468), (14, 2229620), (20, 1560734), (23, 1357160), (28, 1114810), (35, 891848), (37, 843640), (40, 780367), (46, 678580), (56, 557405), (70, 445924), (74, 421820), (92, 339290), (115, 271432), (131, 238280), (140, 222962), (148, 210910), (161, 193880), (184, 169645), (185, 168728), (230, 135716), (259, 120520), (262, 119140), (280, 111481), (296, 105455), (322, 96940), (370, 84364), (460, 67858), (518, 60260), (524, 59570), (644, 48470), (655, 47656), (740, 42182), (805, 38776), (851, 36680), (917, 34040), (920, 33929), (1036, 30130), (1048, 29785), (1288, 24235), (1295, 24104), (1310, 23828), (1480, 21091), (1610, 19388), (1702, 18340), (1834, 17020), (2072, 15065), (2590, 12052), (2620, 11914), (3013, 10360), (3220, 9694), (3404, 9170), (3668, 8510), (4255, 7336), (4585, 6808), (4847, 6440), (5180, 6026), (5240, 5957)]