20687850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1483}}^1$

素因数の和:1532

約数の個数: 72

約数和(自身を含む): 57412992

約数和(自身を除く): 36725142

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 31, 45, 50, 62, 75, 90, 93, 150, 155, 186, 225, 279, 310, 450, 465, 558, 775, 930, 1395, 1483, 1550, 2325, 2790, 2966, 4449, 4650, 6975, 7415, 8898, 13347, 13950, 14830, 22245, 26694, 37075, 44490, 45973, 66735, 74150, 91946, 111225, 133470, 137919, 222450, 229865, 275838, 333675, 413757, 459730, 667350, 689595, 827514, 1149325, 1379190, 2068785, 2298650, 3447975, 4137570, 6895950, 10343925, 20687850]

約数ペア:

[(1, 20687850), (2, 10343925), (3, 6895950), (5, 4137570), (6, 3447975), (9, 2298650), (10, 2068785), (15, 1379190), (18, 1149325), (25, 827514), (30, 689595), (31, 667350), (45, 459730), (50, 413757), (62, 333675), (75, 275838), (90, 229865), (93, 222450), (150, 137919), (155, 133470), (186, 111225), (225, 91946), (279, 74150), (310, 66735), (450, 45973), (465, 44490), (558, 37075), (775, 26694), (930, 22245), (1395, 14830), (1483, 13950), (1550, 13347), (2325, 8898), (2790, 7415), (2966, 6975), (4449, 4650)]