25802480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 66290400

約数和(自身を除く): 40487920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 109, 110, 176, 218, 220, 269, 436, 440, 538, 545, 872, 880, 1076, 1090, 1199, 1345, 1744, 2152, 2180, 2398, 2690, 2959, 4304, 4360, 4796, 5380, 5918, 5995, 8720, 9592, 10760, 11836, 11990, 14795, 19184, 21520, 23672, 23980, 29321, 29590, 47344, 47960, 58642, 59180, 95920, 117284, 118360, 146605, 234568, 236720, 293210, 322531, 469136, 586420, 645062, 1172840, 1290124, 1612655, 2345680, 2580248, 3225310, 5160496, 6450620, 12901240, 25802480]

約数ペア:

[(1, 25802480), (2, 12901240), (4, 6450620), (5, 5160496), (8, 3225310), (10, 2580248), (11, 2345680), (16, 1612655), (20, 1290124), (22, 1172840), (40, 645062), (44, 586420), (55, 469136), (80, 322531), (88, 293210), (109, 236720), (110, 234568), (176, 146605), (218, 118360), (220, 117284), (269, 95920), (436, 59180), (440, 58642), (538, 47960), (545, 47344), (872, 29590), (880, 29321), (1076, 23980), (1090, 23672), (1199, 21520), (1345, 19184), (1744, 14795), (2152, 11990), (2180, 11836), (2398, 10760), (2690, 9592), (2959, 8720), (4304, 5995), (4360, 5918), (4796, 5380)]