647536340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{14083}}^1$

素因数の和:14133

約数の個数: 72

約数和(自身を含む): 1573464480

約数和(自身を除く): 925928140

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 380, 418, 484, 605, 836, 1045, 1210, 2090, 2299, 2420, 4180, 4598, 9196, 11495, 14083, 22990, 28166, 45980, 56332, 70415, 140830, 154913, 267577, 281660, 309826, 535154, 619652, 774565, 1070308, 1337885, 1549130, 1704043, 2675770, 2943347, 3098260, 3408086, 5351540, 5886694, 6816172, 8520215, 11773388, 14716735, 17040430, 29433470, 32376817, 34080860, 58866940, 64753634, 129507268, 161884085, 323768170, 647536340]

約数ペア:

[(1, 647536340), (2, 323768170), (4, 161884085), (5, 129507268), (10, 64753634), (11, 58866940), (19, 34080860), (20, 32376817), (22, 29433470), (38, 17040430), (44, 14716735), (55, 11773388), (76, 8520215), (95, 6816172), (110, 5886694), (121, 5351540), (190, 3408086), (209, 3098260), (220, 2943347), (242, 2675770), (380, 1704043), (418, 1549130), (484, 1337885), (605, 1070308), (836, 774565), (1045, 619652), (1210, 535154), (2090, 309826), (2299, 281660), (2420, 267577), (4180, 154913), (4598, 140830), (9196, 70415), (11495, 56332), (14083, 45980), (22990, 28166)]