20040381620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{8803}}^1$

素因数の和:8950

約数の個数: 144

約数和(自身を含む): 51595947648

約数和(自身を除く): 31555566028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 101, 115, 140, 161, 196, 202, 230, 245, 322, 404, 460, 490, 505, 644, 707, 805, 980, 1010, 1127, 1414, 1610, 2020, 2254, 2323, 2828, 3220, 3535, 4508, 4646, 4949, 5635, 7070, 8803, 9292, 9898, 11270, 11615, 14140, 16261, 17606, 19796, 22540, 23230, 24745, 32522, 35212, 44015, 46460, 49490, 61621, 65044, 81305, 88030, 98980, 113827, 123242, 162610, 176060, 202469, 227654, 246484, 308105, 325220, 404938, 431347, 455308, 569135, 616210, 809876, 862694, 889103, 1012345, 1138270, 1232420, 1417283, 1725388, 1778206, 2024690, 2156735, 2276540, 2834566, 3556412, 4049380, 4313470, 4445515, 5669132, 6223721, 7086415, 8626940, 8891030, 9920981, 12447442, 14172830, 17782060, 19841962, 20449369, 24894884, 28345660, 31118605, 39683924, 40898738, 43566047, 49604905, 62237210, 81797476, 87132094, 99209810, 102246845, 124474420, 143145583, 174264188, 198419620, 204493690, 217830235, 286291166, 408987380, 435660470, 572582332, 715727915, 871320940, 1002019081, 1431455830, 2004038162, 2862911660, 4008076324, 5010095405, 10020190810, 20040381620]

約数ペア:

[(1, 20040381620), (2, 10020190810), (4, 5010095405), (5, 4008076324), (7, 2862911660), (10, 2004038162), (14, 1431455830), (20, 1002019081), (23, 871320940), (28, 715727915), (35, 572582332), (46, 435660470), (49, 408987380), (70, 286291166), (92, 217830235), (98, 204493690), (101, 198419620), (115, 174264188), (140, 143145583), (161, 124474420), (196, 102246845), (202, 99209810), (230, 87132094), (245, 81797476), (322, 62237210), (404, 49604905), (460, 43566047), (490, 40898738), (505, 39683924), (644, 31118605), (707, 28345660), (805, 24894884), (980, 20449369), (1010, 19841962), (1127, 17782060), (1414, 14172830), (1610, 12447442), (2020, 9920981), (2254, 8891030), (2323, 8626940), (2828, 7086415), (3220, 6223721), (3535, 5669132), (4508, 4445515), (4646, 4313470), (4949, 4049380), (5635, 3556412), (7070, 2834566), (8803, 2276540), (9292, 2156735), (9898, 2024690), (11270, 1778206), (11615, 1725388), (14140, 1417283), (16261, 1232420), (17606, 1138270), (19796, 1012345), (22540, 889103), (23230, 862694), (24745, 809876), (32522, 616210), (35212, 569135), (44015, 455308), (46460, 431347), (49490, 404938), (61621, 325220), (65044, 308105), (81305, 246484), (88030, 227654), (98980, 202469), (113827, 176060), (123242, 162610)]