61931560

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 143700480

約数和(自身を除く): 81768920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 131, 212, 223, 262, 265, 424, 446, 524, 530, 655, 892, 1048, 1060, 1115, 1310, 1784, 2120, 2230, 2620, 4460, 5240, 6943, 8920, 11819, 13886, 23638, 27772, 29213, 34715, 47276, 55544, 58426, 59095, 69430, 94552, 116852, 118190, 138860, 146065, 233704, 236380, 277720, 292130, 472760, 584260, 1168520, 1548289, 3096578, 6193156, 7741445, 12386312, 15482890, 30965780, 61931560]

約数ペア:

[(1, 61931560), (2, 30965780), (4, 15482890), (5, 12386312), (8, 7741445), (10, 6193156), (20, 3096578), (40, 1548289), (53, 1168520), (106, 584260), (131, 472760), (212, 292130), (223, 277720), (262, 236380), (265, 233704), (424, 146065), (446, 138860), (524, 118190), (530, 116852), (655, 94552), (892, 69430), (1048, 59095), (1060, 58426), (1115, 55544), (1310, 47276), (1784, 34715), (2120, 29213), (2230, 27772), (2620, 23638), (4460, 13886), (5240, 11819), (6943, 8920)]