208489140

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{42899}}^1$

素因数の和:42923

約数の個数: 72

約数和(自身を含む): 655855200

約数和(自身を除く): 447366060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4860, 42899, 85798, 128697, 171596, 214495, 257394, 386091, 428990, 514788, 643485, 772182, 857980, 1158273, 1286970, 1544364, 1930455, 2316546, 2573940, 3474819, 3860910, 4633092, 5791365, 6949638, 7721820, 10424457, 11582730, 13899276, 17374095, 20848914, 23165460, 34748190, 41697828, 52122285, 69496380, 104244570, 208489140]

約数ペア:

[(1, 208489140), (2, 104244570), (3, 69496380), (4, 52122285), (5, 41697828), (6, 34748190), (9, 23165460), (10, 20848914), (12, 17374095), (15, 13899276), (18, 11582730), (20, 10424457), (27, 7721820), (30, 6949638), (36, 5791365), (45, 4633092), (54, 3860910), (60, 3474819), (81, 2573940), (90, 2316546), (108, 1930455), (135, 1544364), (162, 1286970), (180, 1158273), (243, 857980), (270, 772182), (324, 643485), (405, 514788), (486, 428990), (540, 386091), (810, 257394), (972, 214495), (1215, 171596), (1620, 128697), (2430, 85798), (4860, 42899)]