20188099240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{148573}}^1$

素因数の和:148706

約数の個数: 64

約数和(自身を含む): 47068243200

約数和(自身を除く): 26880143960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 79, 86, 158, 172, 215, 316, 344, 395, 430, 632, 790, 860, 1580, 1720, 3160, 3397, 6794, 13588, 16985, 27176, 33970, 67940, 135880, 148573, 297146, 594292, 742865, 1188584, 1485730, 2971460, 5942920, 6388639, 11737267, 12777278, 23474534, 25554556, 31943195, 46949068, 51109112, 58686335, 63886390, 93898136, 117372670, 127772780, 234745340, 255545560, 469490680, 504702481, 1009404962, 2018809924, 2523512405, 4037619848, 5047024810, 10094049620, 20188099240]

約数ペア:

[(1, 20188099240), (2, 10094049620), (4, 5047024810), (5, 4037619848), (8, 2523512405), (10, 2018809924), (20, 1009404962), (40, 504702481), (43, 469490680), (79, 255545560), (86, 234745340), (158, 127772780), (172, 117372670), (215, 93898136), (316, 63886390), (344, 58686335), (395, 51109112), (430, 46949068), (632, 31943195), (790, 25554556), (860, 23474534), (1580, 12777278), (1720, 11737267), (3160, 6388639), (3397, 5942920), (6794, 2971460), (13588, 1485730), (16985, 1188584), (27176, 742865), (33970, 594292), (67940, 297146), (135880, 148573)]