18758640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1663}}^1$

素因数の和:1726

約数の個数: 80

約数和(自身を含む): 59424768

約数和(自身を除く): 40666128

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 47, 48, 60, 80, 94, 120, 141, 188, 235, 240, 282, 376, 470, 564, 705, 752, 940, 1128, 1410, 1663, 1880, 2256, 2820, 3326, 3760, 4989, 5640, 6652, 8315, 9978, 11280, 13304, 16630, 19956, 24945, 26608, 33260, 39912, 49890, 66520, 78161, 79824, 99780, 133040, 156322, 199560, 234483, 312644, 390805, 399120, 468966, 625288, 781610, 937932, 1172415, 1250576, 1563220, 1875864, 2344830, 3126440, 3751728, 4689660, 6252880, 9379320, 18758640]

約数ペア:

[(1, 18758640), (2, 9379320), (3, 6252880), (4, 4689660), (5, 3751728), (6, 3126440), (8, 2344830), (10, 1875864), (12, 1563220), (15, 1250576), (16, 1172415), (20, 937932), (24, 781610), (30, 625288), (40, 468966), (47, 399120), (48, 390805), (60, 312644), (80, 234483), (94, 199560), (120, 156322), (141, 133040), (188, 99780), (235, 79824), (240, 78161), (282, 66520), (376, 49890), (470, 39912), (564, 33260), (705, 26608), (752, 24945), (940, 19956), (1128, 16630), (1410, 13304), (1663, 11280), (1880, 9978), (2256, 8315), (2820, 6652), (3326, 5640), (3760, 4989)]