18735780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1439}}^1$

素因数の和:1489

約数の個数: 96

約数和(自身を含む): 61931520

約数和(自身を除く): 43195740

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1439, 1860, 2170, 2604, 2878, 3255, 4317, 4340, 5756, 6510, 7195, 8634, 10073, 13020, 14390, 17268, 20146, 21585, 28780, 30219, 40292, 43170, 44609, 50365, 60438, 86340, 89218, 100730, 120876, 133827, 151095, 178436, 201460, 223045, 267654, 302190, 312263, 446090, 535308, 604380, 624526, 669135, 892180, 936789, 1249052, 1338270, 1561315, 1873578, 2676540, 3122630, 3747156, 4683945, 6245260, 9367890, 18735780]

約数ペア:

[(1, 18735780), (2, 9367890), (3, 6245260), (4, 4683945), (5, 3747156), (6, 3122630), (7, 2676540), (10, 1873578), (12, 1561315), (14, 1338270), (15, 1249052), (20, 936789), (21, 892180), (28, 669135), (30, 624526), (31, 604380), (35, 535308), (42, 446090), (60, 312263), (62, 302190), (70, 267654), (84, 223045), (93, 201460), (105, 178436), (124, 151095), (140, 133827), (155, 120876), (186, 100730), (210, 89218), (217, 86340), (310, 60438), (372, 50365), (420, 44609), (434, 43170), (465, 40292), (620, 30219), (651, 28780), (868, 21585), (930, 20146), (1085, 17268), (1302, 14390), (1439, 13020), (1860, 10073), (2170, 8634), (2604, 7195), (2878, 6510), (3255, 5756), (4317, 4340)]