218731660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{499}}^1$

素因数の和:647

約数の個数: 96

約数和(自身を含む): 548352000

約数和(自身を除く): 329620340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 101, 124, 140, 155, 202, 217, 310, 404, 434, 499, 505, 620, 707, 868, 998, 1010, 1085, 1414, 1996, 2020, 2170, 2495, 2828, 3131, 3493, 3535, 4340, 4990, 6262, 6986, 7070, 9980, 12524, 13972, 14140, 15469, 15655, 17465, 21917, 30938, 31310, 34930, 43834, 50399, 61876, 62620, 69860, 77345, 87668, 100798, 108283, 109585, 154690, 201596, 216566, 219170, 251995, 309380, 352793, 433132, 438340, 503990, 541415, 705586, 1007980, 1082830, 1411172, 1562369, 1763965, 2165660, 3124738, 3527930, 6249476, 7055860, 7811845, 10936583, 15623690, 21873166, 31247380, 43746332, 54682915, 109365830, 218731660]

約数ペア:

[(1, 218731660), (2, 109365830), (4, 54682915), (5, 43746332), (7, 31247380), (10, 21873166), (14, 15623690), (20, 10936583), (28, 7811845), (31, 7055860), (35, 6249476), (62, 3527930), (70, 3124738), (101, 2165660), (124, 1763965), (140, 1562369), (155, 1411172), (202, 1082830), (217, 1007980), (310, 705586), (404, 541415), (434, 503990), (499, 438340), (505, 433132), (620, 352793), (707, 309380), (868, 251995), (998, 219170), (1010, 216566), (1085, 201596), (1414, 154690), (1996, 109585), (2020, 108283), (2170, 100798), (2495, 87668), (2828, 77345), (3131, 69860), (3493, 62620), (3535, 61876), (4340, 50399), (4990, 43834), (6262, 34930), (6986, 31310), (7070, 30938), (9980, 21917), (12524, 17465), (13972, 15655), (14140, 15469)]