20740804560

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{4115239}}^1$

素因数の和:4115265

約数の個数: 120

約数和(自身を含む): 79605202560

約数和(自身を除く): 58864398000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 4115239, 8230478, 12345717, 16460956, 20576195, 24691434, 28806673, 32921912, 37037151, 41152390, 49382868, 57613346, 61728585, 65843824, 74074302, 82304780, 86420019, 98765736, 115226692, 123457170, 144033365, 148148604, 164609560, 172840038, 185185755, 197531472, 230453384, 246914340, 259260057, 288066730, 296297208, 329219120, 345680076, 370371510, 432100095, 460906768, 493828680, 518520114, 576133460, 592594416, 691360152, 740743020, 864200190, 987657360, 1037040228, 1152266920, 1296300285, 1382720304, 1481486040, 1728400380, 2074080456, 2304533840, 2592600570, 2962972080, 3456800760, 4148160912, 5185201140, 6913601520, 10370402280, 20740804560]

約数ペア:

[(1, 20740804560), (2, 10370402280), (3, 6913601520), (4, 5185201140), (5, 4148160912), (6, 3456800760), (7, 2962972080), (8, 2592600570), (9, 2304533840), (10, 2074080456), (12, 1728400380), (14, 1481486040), (15, 1382720304), (16, 1296300285), (18, 1152266920), (20, 1037040228), (21, 987657360), (24, 864200190), (28, 740743020), (30, 691360152), (35, 592594416), (36, 576133460), (40, 518520114), (42, 493828680), (45, 460906768), (48, 432100095), (56, 370371510), (60, 345680076), (63, 329219120), (70, 296297208), (72, 288066730), (80, 259260057), (84, 246914340), (90, 230453384), (105, 197531472), (112, 185185755), (120, 172840038), (126, 164609560), (140, 148148604), (144, 144033365), (168, 123457170), (180, 115226692), (210, 98765736), (240, 86420019), (252, 82304780), (280, 74074302), (315, 65843824), (336, 61728585), (360, 57613346), (420, 49382868), (504, 41152390), (560, 37037151), (630, 32921912), (720, 28806673), (840, 24691434), (1008, 20576195), (1260, 16460956), (1680, 12345717), (2520, 8230478), (5040, 4115239)]