15920360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 38085120

約数和(自身を除く): 22164760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 347, 370, 620, 694, 740, 1147, 1240, 1388, 1480, 1735, 2294, 2776, 3470, 4588, 5735, 6940, 9176, 10757, 11470, 12839, 13880, 21514, 22940, 25678, 43028, 45880, 51356, 53785, 64195, 86056, 102712, 107570, 128390, 215140, 256780, 398009, 430280, 513560, 796018, 1592036, 1990045, 3184072, 3980090, 7960180, 15920360]

約数ペア:

[(1, 15920360), (2, 7960180), (4, 3980090), (5, 3184072), (8, 1990045), (10, 1592036), (20, 796018), (31, 513560), (37, 430280), (40, 398009), (62, 256780), (74, 215140), (124, 128390), (148, 107570), (155, 102712), (185, 86056), (248, 64195), (296, 53785), (310, 51356), (347, 45880), (370, 43028), (620, 25678), (694, 22940), (740, 21514), (1147, 13880), (1240, 12839), (1388, 11470), (1480, 10757), (1735, 9176), (2294, 6940), (2776, 5735), (3470, 4588)]