20165096420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{4969}}^1$

素因数の和:5134

約数の個数: 144

約数和(自身を含む): 50971803120

約数和(自身を除く): 30806706700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 101, 140, 164, 196, 202, 205, 245, 287, 404, 410, 490, 505, 574, 707, 820, 980, 1010, 1148, 1414, 1435, 2009, 2020, 2828, 2870, 3535, 4018, 4141, 4949, 4969, 5740, 7070, 8036, 8282, 9898, 9938, 10045, 14140, 16564, 19796, 19876, 20090, 20705, 24745, 24845, 28987, 34783, 40180, 41410, 49490, 49690, 57974, 69566, 82820, 98980, 99380, 115948, 139132, 144935, 173915, 202909, 203729, 243481, 289870, 347830, 405818, 407458, 486962, 501869, 579740, 695660, 811636, 814916, 973924, 1003738, 1014545, 1018645, 1217405, 1426103, 2007476, 2029090, 2037290, 2434810, 2509345, 2852206, 3513083, 4058180, 4074580, 4869620, 5018690, 5704412, 7026166, 7130515, 9982721, 10037380, 14052332, 14261030, 17565415, 19965442, 20576629, 24591581, 28522060, 35130830, 39930884, 41153258, 49183162, 49913605, 70261660, 82306516, 98366324, 99827210, 102883145, 122957905, 144036403, 199654420, 205766290, 245915810, 288072806, 411532580, 491831620, 576145612, 720182015, 1008254821, 1440364030, 2016509642, 2880728060, 4033019284, 5041274105, 10082548210, 20165096420]

約数ペア:

[(1, 20165096420), (2, 10082548210), (4, 5041274105), (5, 4033019284), (7, 2880728060), (10, 2016509642), (14, 1440364030), (20, 1008254821), (28, 720182015), (35, 576145612), (41, 491831620), (49, 411532580), (70, 288072806), (82, 245915810), (98, 205766290), (101, 199654420), (140, 144036403), (164, 122957905), (196, 102883145), (202, 99827210), (205, 98366324), (245, 82306516), (287, 70261660), (404, 49913605), (410, 49183162), (490, 41153258), (505, 39930884), (574, 35130830), (707, 28522060), (820, 24591581), (980, 20576629), (1010, 19965442), (1148, 17565415), (1414, 14261030), (1435, 14052332), (2009, 10037380), (2020, 9982721), (2828, 7130515), (2870, 7026166), (3535, 5704412), (4018, 5018690), (4141, 4869620), (4949, 4074580), (4969, 4058180), (5740, 3513083), (7070, 2852206), (8036, 2509345), (8282, 2434810), (9898, 2037290), (9938, 2029090), (10045, 2007476), (14140, 1426103), (16564, 1217405), (19796, 1018645), (19876, 1014545), (20090, 1003738), (20705, 973924), (24745, 814916), (24845, 811636), (28987, 695660), (34783, 579740), (40180, 501869), (41410, 486962), (49490, 407458), (49690, 405818), (57974, 347830), (69566, 289870), (82820, 243481), (98980, 203729), (99380, 202909), (115948, 173915), (139132, 144935)]