20780490060

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{388711}}^1$

素因数の和:388746

約数の個数: 144

約数和(自身を含む): 71311548672

約数和(自身を除く): 50531058612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 165, 180, 198, 220, 243, 270, 297, 324, 330, 396, 405, 486, 495, 540, 594, 660, 810, 891, 972, 990, 1188, 1215, 1485, 1620, 1782, 1980, 2430, 2673, 2970, 3564, 4455, 4860, 5346, 5940, 8910, 10692, 13365, 17820, 26730, 53460, 388711, 777422, 1166133, 1554844, 1943555, 2332266, 3498399, 3887110, 4275821, 4664532, 5830665, 6996798, 7774220, 8551642, 10495197, 11661330, 12827463, 13993596, 17103284, 17491995, 20990394, 21379105, 23322660, 25654926, 31485591, 34983990, 38482389, 41980788, 42758210, 51309852, 52475985, 62971182, 64137315, 69967980, 76964778, 85516420, 94456773, 104951970, 115447167, 125942364, 128274630, 153929556, 157427955, 188913546, 192411945, 209903940, 230894334, 256549260, 314855910, 346341501, 377827092, 384823890, 461788668, 472283865, 577235835, 629711820, 692683002, 769647780, 944567730, 1039024503, 1154471670, 1385366004, 1731707505, 1889135460, 2078049006, 2308943340, 3463415010, 4156098012, 5195122515, 6926830020, 10390245030, 20780490060]

約数ペア:

[(1, 20780490060), (2, 10390245030), (3, 6926830020), (4, 5195122515), (5, 4156098012), (6, 3463415010), (9, 2308943340), (10, 2078049006), (11, 1889135460), (12, 1731707505), (15, 1385366004), (18, 1154471670), (20, 1039024503), (22, 944567730), (27, 769647780), (30, 692683002), (33, 629711820), (36, 577235835), (44, 472283865), (45, 461788668), (54, 384823890), (55, 377827092), (60, 346341501), (66, 314855910), (81, 256549260), (90, 230894334), (99, 209903940), (108, 192411945), (110, 188913546), (132, 157427955), (135, 153929556), (162, 128274630), (165, 125942364), (180, 115447167), (198, 104951970), (220, 94456773), (243, 85516420), (270, 76964778), (297, 69967980), (324, 64137315), (330, 62971182), (396, 52475985), (405, 51309852), (486, 42758210), (495, 41980788), (540, 38482389), (594, 34983990), (660, 31485591), (810, 25654926), (891, 23322660), (972, 21379105), (990, 20990394), (1188, 17491995), (1215, 17103284), (1485, 13993596), (1620, 12827463), (1782, 11661330), (1980, 10495197), (2430, 8551642), (2673, 7774220), (2970, 6996798), (3564, 5830665), (4455, 4664532), (4860, 4275821), (5346, 3887110), (5940, 3498399), (8910, 2332266), (10692, 1943555), (13365, 1554844), (17820, 1166133), (26730, 777422), (53460, 388711)]