19761570

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{787}}^1$

素因数の和:837

約数の個数: 80

約数和(自身を含む): 54920448

約数和(自身を除く): 35158878

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 81, 90, 93, 135, 155, 162, 186, 270, 279, 310, 405, 465, 558, 787, 810, 837, 930, 1395, 1574, 1674, 2361, 2511, 2790, 3935, 4185, 4722, 5022, 7083, 7870, 8370, 11805, 12555, 14166, 21249, 23610, 24397, 25110, 35415, 42498, 48794, 63747, 70830, 73191, 106245, 121985, 127494, 146382, 212490, 219573, 243970, 318735, 365955, 439146, 637470, 658719, 731910, 1097865, 1317438, 1976157, 2195730, 3293595, 3952314, 6587190, 9880785, 19761570]

約数ペア:

[(1, 19761570), (2, 9880785), (3, 6587190), (5, 3952314), (6, 3293595), (9, 2195730), (10, 1976157), (15, 1317438), (18, 1097865), (27, 731910), (30, 658719), (31, 637470), (45, 439146), (54, 365955), (62, 318735), (81, 243970), (90, 219573), (93, 212490), (135, 146382), (155, 127494), (162, 121985), (186, 106245), (270, 73191), (279, 70830), (310, 63747), (405, 48794), (465, 42498), (558, 35415), (787, 25110), (810, 24397), (837, 23610), (930, 21249), (1395, 14166), (1574, 12555), (1674, 11805), (2361, 8370), (2511, 7870), (2790, 7083), (3935, 5022), (4185, 4722)]