1990271608

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{2377}}^1$

素因数の和:2576

約数の個数: 64

約数和(自身を含む): 4110896160

約数和(自身を除く): 2120624552

約数列:

[1, 2, 4, 8, 13, 26, 52, 83, 97, 104, 166, 194, 332, 388, 664, 776, 1079, 1261, 2158, 2377, 2522, 4316, 4754, 5044, 8051, 8632, 9508, 10088, 16102, 19016, 30901, 32204, 61802, 64408, 104663, 123604, 197291, 209326, 230569, 247208, 394582, 418652, 461138, 789164, 837304, 922276, 1578328, 1844552, 2564783, 2997397, 5129566, 5994794, 10259132, 11989588, 19137227, 20518264, 23979176, 38274454, 76548908, 153097816, 248783951, 497567902, 995135804, 1990271608]

約数ペア:

[(1, 1990271608), (2, 995135804), (4, 497567902), (8, 248783951), (13, 153097816), (26, 76548908), (52, 38274454), (83, 23979176), (97, 20518264), (104, 19137227), (166, 11989588), (194, 10259132), (332, 5994794), (388, 5129566), (664, 2997397), (776, 2564783), (1079, 1844552), (1261, 1578328), (2158, 922276), (2377, 837304), (2522, 789164), (4316, 461138), (4754, 418652), (5044, 394582), (8051, 247208), (8632, 230569), (9508, 209326), (10088, 197291), (16102, 123604), (19016, 104663), (30901, 64408), (32204, 61802)]