20552220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8783}}^1$

素因数の和:8811

約数の個数: 72

約数和(自身を含む): 67144896

約数和(自身を除く): 46592676

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8783, 17566, 26349, 35132, 43915, 52698, 79047, 87830, 105396, 114179, 131745, 158094, 175660, 228358, 263490, 316188, 342537, 395235, 456716, 526980, 570895, 685074, 790470, 1027611, 1141790, 1370148, 1580940, 1712685, 2055222, 2283580, 3425370, 4110444, 5138055, 6850740, 10276110, 20552220]

約数ペア:

[(1, 20552220), (2, 10276110), (3, 6850740), (4, 5138055), (5, 4110444), (6, 3425370), (9, 2283580), (10, 2055222), (12, 1712685), (13, 1580940), (15, 1370148), (18, 1141790), (20, 1027611), (26, 790470), (30, 685074), (36, 570895), (39, 526980), (45, 456716), (52, 395235), (60, 342537), (65, 316188), (78, 263490), (90, 228358), (117, 175660), (130, 158094), (156, 131745), (180, 114179), (195, 105396), (234, 87830), (260, 79047), (390, 52698), (468, 43915), (585, 35132), (780, 26349), (1170, 17566), (2340, 8783)]