15661620760

素因数分解:

$2^3\times 5^1\times {\mathrm{12821}}^1\times {\mathrm{30539}}^1$

素因数の和:43371

約数の個数: 32

約数和(自身を含む): 35242549200

約数和(自身を除く): 19580928440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 12821, 25642, 30539, 51284, 61078, 64105, 102568, 122156, 128210, 152695, 244312, 256420, 305390, 512840, 610780, 1221560, 391540519, 783081038, 1566162076, 1957702595, 3132324152, 3915405190, 7830810380, 15661620760]

約数ペア:

[(1, 15661620760), (2, 7830810380), (4, 3915405190), (5, 3132324152), (8, 1957702595), (10, 1566162076), (20, 783081038), (40, 391540519), (12821, 1221560), (25642, 610780), (30539, 512840), (51284, 305390), (61078, 256420), (64105, 244312), (102568, 152695), (122156, 128210)]