20197884720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6473681}}^1$

素因数の和:6473710

約数の個数: 80

約数和(自身を含む): 67429871712

約数和(自身を除く): 47231986992

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6473681, 12947362, 19421043, 25894724, 32368405, 38842086, 51789448, 64736810, 77684172, 84157853, 97105215, 103578896, 129473620, 155368344, 168315706, 194210430, 252473559, 258947240, 310736688, 336631412, 388420860, 420789265, 504947118, 517894480, 673262824, 776841720, 841578530, 1009894236, 1262367795, 1346525648, 1553683440, 1683157060, 2019788472, 2524735590, 3366314120, 4039576944, 5049471180, 6732628240, 10098942360, 20197884720]

約数ペア:

[(1, 20197884720), (2, 10098942360), (3, 6732628240), (4, 5049471180), (5, 4039576944), (6, 3366314120), (8, 2524735590), (10, 2019788472), (12, 1683157060), (13, 1553683440), (15, 1346525648), (16, 1262367795), (20, 1009894236), (24, 841578530), (26, 776841720), (30, 673262824), (39, 517894480), (40, 504947118), (48, 420789265), (52, 388420860), (60, 336631412), (65, 310736688), (78, 258947240), (80, 252473559), (104, 194210430), (120, 168315706), (130, 155368344), (156, 129473620), (195, 103578896), (208, 97105215), (240, 84157853), (260, 77684172), (312, 64736810), (390, 51789448), (520, 38842086), (624, 32368405), (780, 25894724), (1040, 19421043), (1560, 12947362), (3120, 6473681)]