61485560

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 142490880

約数和(自身を除く): 81005320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 113, 122, 223, 226, 244, 305, 446, 452, 488, 565, 610, 892, 904, 1115, 1130, 1220, 1784, 2230, 2260, 2440, 4460, 4520, 6893, 8920, 13603, 13786, 25199, 27206, 27572, 34465, 50398, 54412, 55144, 68015, 68930, 100796, 108824, 125995, 136030, 137860, 201592, 251990, 272060, 275720, 503980, 544120, 1007960, 1537139, 3074278, 6148556, 7685695, 12297112, 15371390, 30742780, 61485560]

約数ペア:

[(1, 61485560), (2, 30742780), (4, 15371390), (5, 12297112), (8, 7685695), (10, 6148556), (20, 3074278), (40, 1537139), (61, 1007960), (113, 544120), (122, 503980), (223, 275720), (226, 272060), (244, 251990), (305, 201592), (446, 137860), (452, 136030), (488, 125995), (565, 108824), (610, 100796), (892, 68930), (904, 68015), (1115, 55144), (1130, 54412), (1220, 50398), (1784, 34465), (2230, 27572), (2260, 27206), (2440, 25199), (4460, 13786), (4520, 13603), (6893, 8920)]