221957560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^4\times {\mathrm{379}}^1$

素因数の和:434

約数の個数: 80

約数和(自身を含む): 550791000

約数和(自身を除く): 328833440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 379, 440, 484, 605, 758, 968, 1210, 1331, 1516, 1895, 2420, 2662, 3032, 3790, 4169, 4840, 5324, 6655, 7580, 8338, 10648, 13310, 14641, 15160, 16676, 20845, 26620, 29282, 33352, 41690, 45859, 53240, 58564, 73205, 83380, 91718, 117128, 146410, 166760, 183436, 229295, 292820, 366872, 458590, 504449, 585640, 917180, 1008898, 1834360, 2017796, 2522245, 4035592, 5044490, 5548939, 10088980, 11097878, 20177960, 22195756, 27744695, 44391512, 55489390, 110978780, 221957560]

約数ペア:

[(1, 221957560), (2, 110978780), (4, 55489390), (5, 44391512), (8, 27744695), (10, 22195756), (11, 20177960), (20, 11097878), (22, 10088980), (40, 5548939), (44, 5044490), (55, 4035592), (88, 2522245), (110, 2017796), (121, 1834360), (220, 1008898), (242, 917180), (379, 585640), (440, 504449), (484, 458590), (605, 366872), (758, 292820), (968, 229295), (1210, 183436), (1331, 166760), (1516, 146410), (1895, 117128), (2420, 91718), (2662, 83380), (3032, 73205), (3790, 58564), (4169, 53240), (4840, 45859), (5324, 41690), (6655, 33352), (7580, 29282), (8338, 26620), (10648, 20845), (13310, 16676), (14641, 15160)]