19937340

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:449

約数の個数: 120

約数和(自身を含む): 64724352

約数和(自身を除く): 44787012

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 186, 270, 279, 310, 324, 372, 397, 405, 465, 540, 558, 620, 794, 810, 837, 930, 1116, 1191, 1395, 1588, 1620, 1674, 1860, 1985, 2382, 2511, 2790, 3348, 3573, 3970, 4185, 4764, 5022, 5580, 5955, 7146, 7940, 8370, 10044, 10719, 11910, 12307, 12555, 14292, 16740, 17865, 21438, 23820, 24614, 25110, 32157, 35730, 36921, 42876, 49228, 50220, 53595, 61535, 64314, 71460, 73842, 107190, 110763, 123070, 128628, 147684, 160785, 184605, 214380, 221526, 246140, 321570, 332289, 369210, 443052, 553815, 643140, 664578, 738420, 996867, 1107630, 1329156, 1661445, 1993734, 2215260, 3322890, 3987468, 4984335, 6645780, 9968670, 19937340]

約数ペア:

[(1, 19937340), (2, 9968670), (3, 6645780), (4, 4984335), (5, 3987468), (6, 3322890), (9, 2215260), (10, 1993734), (12, 1661445), (15, 1329156), (18, 1107630), (20, 996867), (27, 738420), (30, 664578), (31, 643140), (36, 553815), (45, 443052), (54, 369210), (60, 332289), (62, 321570), (81, 246140), (90, 221526), (93, 214380), (108, 184605), (124, 160785), (135, 147684), (155, 128628), (162, 123070), (180, 110763), (186, 107190), (270, 73842), (279, 71460), (310, 64314), (324, 61535), (372, 53595), (397, 50220), (405, 49228), (465, 42876), (540, 36921), (558, 35730), (620, 32157), (794, 25110), (810, 24614), (837, 23820), (930, 21438), (1116, 17865), (1191, 16740), (1395, 14292), (1588, 12555), (1620, 12307), (1674, 11910), (1860, 10719), (1985, 10044), (2382, 8370), (2511, 7940), (2790, 7146), (3348, 5955), (3573, 5580), (3970, 5022), (4185, 4764)]