31650580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:233

約数の個数: 96

約数和(自身を含む): 77616000

約数和(自身を除く): 45965420

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 43, 52, 65, 76, 86, 95, 130, 149, 172, 190, 215, 247, 260, 298, 380, 430, 494, 559, 596, 745, 817, 860, 988, 1118, 1235, 1490, 1634, 1937, 2236, 2470, 2795, 2831, 2980, 3268, 3874, 4085, 4940, 5590, 5662, 6407, 7748, 8170, 9685, 10621, 11180, 11324, 12814, 14155, 16340, 19370, 21242, 25628, 28310, 32035, 36803, 38740, 42484, 53105, 56620, 64070, 73606, 83291, 106210, 121733, 128140, 147212, 166582, 184015, 212420, 243466, 333164, 368030, 416455, 486932, 608665, 736060, 832910, 1217330, 1582529, 1665820, 2434660, 3165058, 6330116, 7912645, 15825290, 31650580]

約数ペア:

[(1, 31650580), (2, 15825290), (4, 7912645), (5, 6330116), (10, 3165058), (13, 2434660), (19, 1665820), (20, 1582529), (26, 1217330), (38, 832910), (43, 736060), (52, 608665), (65, 486932), (76, 416455), (86, 368030), (95, 333164), (130, 243466), (149, 212420), (172, 184015), (190, 166582), (215, 147212), (247, 128140), (260, 121733), (298, 106210), (380, 83291), (430, 73606), (494, 64070), (559, 56620), (596, 53105), (745, 42484), (817, 38740), (860, 36803), (988, 32035), (1118, 28310), (1235, 25628), (1490, 21242), (1634, 19370), (1937, 16340), (2236, 14155), (2470, 12814), (2795, 11324), (2831, 11180), (2980, 10621), (3268, 9685), (3874, 8170), (4085, 7748), (4940, 6407), (5590, 5662)]