139582640

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{28603}}^1$

素因数の和:28677

約数の個数: 40

約数和(自身を含む): 329861328

約数和(自身を除く): 190278688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 28603, 57206, 114412, 143015, 228824, 286030, 457648, 572060, 1144120, 1744783, 2288240, 3489566, 6979132, 8723915, 13958264, 17447830, 27916528, 34895660, 69791320, 139582640]

約数ペア:

[(1, 139582640), (2, 69791320), (4, 34895660), (5, 27916528), (8, 17447830), (10, 13958264), (16, 8723915), (20, 6979132), (40, 3489566), (61, 2288240), (80, 1744783), (122, 1144120), (244, 572060), (305, 457648), (488, 286030), (610, 228824), (976, 143015), (1220, 114412), (2440, 57206), (4880, 28603)]