20544931880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{313}}^1\times {\mathrm{619}}^1$

素因数の和:1195

約数の個数: 128

約数和(自身を含む): 50881564800

約数和(自身を除く): 30336632920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 241, 313, 440, 482, 619, 626, 964, 1205, 1238, 1252, 1565, 1928, 2410, 2476, 2504, 2651, 3095, 3130, 3443, 4820, 4952, 5302, 6190, 6260, 6809, 6886, 9640, 10604, 12380, 12520, 13255, 13618, 13772, 17215, 21208, 24760, 26510, 27236, 27544, 34045, 34430, 53020, 54472, 68090, 68860, 75433, 106040, 136180, 137720, 149179, 150866, 193747, 272360, 298358, 301732, 377165, 387494, 596716, 603464, 745895, 754330, 774988, 829763, 968735, 1193432, 1491790, 1508660, 1549976, 1640969, 1659526, 1937470, 2131217, 2983580, 3017320, 3281938, 3319052, 3874940, 4148815, 4262434, 5967160, 6563876, 6638104, 7749880, 8204845, 8297630, 8524868, 10656085, 13127752, 16409690, 16595260, 17049736, 21312170, 32819380, 33190520, 42624340, 46693027, 65638760, 85248680, 93386054, 186772108, 233465135, 373544216, 466930270, 513623297, 933860540, 1027246594, 1867721080, 2054493188, 2568116485, 4108986376, 5136232970, 10272465940, 20544931880]

約数ペア:

[(1, 20544931880), (2, 10272465940), (4, 5136232970), (5, 4108986376), (8, 2568116485), (10, 2054493188), (11, 1867721080), (20, 1027246594), (22, 933860540), (40, 513623297), (44, 466930270), (55, 373544216), (88, 233465135), (110, 186772108), (220, 93386054), (241, 85248680), (313, 65638760), (440, 46693027), (482, 42624340), (619, 33190520), (626, 32819380), (964, 21312170), (1205, 17049736), (1238, 16595260), (1252, 16409690), (1565, 13127752), (1928, 10656085), (2410, 8524868), (2476, 8297630), (2504, 8204845), (2651, 7749880), (3095, 6638104), (3130, 6563876), (3443, 5967160), (4820, 4262434), (4952, 4148815), (5302, 3874940), (6190, 3319052), (6260, 3281938), (6809, 3017320), (6886, 2983580), (9640, 2131217), (10604, 1937470), (12380, 1659526), (12520, 1640969), (13255, 1549976), (13618, 1508660), (13772, 1491790), (17215, 1193432), (21208, 968735), (24760, 829763), (26510, 774988), (27236, 754330), (27544, 745895), (34045, 603464), (34430, 596716), (53020, 387494), (54472, 377165), (68090, 301732), (68860, 298358), (75433, 272360), (106040, 193747), (136180, 150866), (137720, 149179)]