20977710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{149}}^1$

素因数の和:210

約数の個数: 96

約数和(自身を含む): 57607200

約数和(自身を除く): 36629490

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 149, 190, 195, 247, 285, 298, 361, 390, 447, 494, 570, 722, 741, 745, 894, 1083, 1235, 1482, 1490, 1805, 1937, 2166, 2235, 2470, 2831, 3610, 3705, 3874, 4470, 4693, 5415, 5662, 5811, 7410, 8493, 9386, 9685, 10830, 11622, 14079, 14155, 16986, 19370, 23465, 28158, 28310, 29055, 36803, 42465, 46930, 53789, 58110, 70395, 73606, 84930, 107578, 110409, 140790, 161367, 184015, 220818, 268945, 322734, 368030, 537890, 552045, 699257, 806835, 1104090, 1398514, 1613670, 2097771, 3496285, 4195542, 6992570, 10488855, 20977710]

約数ペア:

[(1, 20977710), (2, 10488855), (3, 6992570), (5, 4195542), (6, 3496285), (10, 2097771), (13, 1613670), (15, 1398514), (19, 1104090), (26, 806835), (30, 699257), (38, 552045), (39, 537890), (57, 368030), (65, 322734), (78, 268945), (95, 220818), (114, 184015), (130, 161367), (149, 140790), (190, 110409), (195, 107578), (247, 84930), (285, 73606), (298, 70395), (361, 58110), (390, 53789), (447, 46930), (494, 42465), (570, 36803), (722, 29055), (741, 28310), (745, 28158), (894, 23465), (1083, 19370), (1235, 16986), (1482, 14155), (1490, 14079), (1805, 11622), (1937, 10830), (2166, 9685), (2235, 9386), (2470, 8493), (2831, 7410), (3610, 5811), (3705, 5662), (3874, 5415), (4470, 4693)]