18991170090

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{756319}}^1$

素因数の和:756369

約数の個数: 80

約数和(自身を含む): 52712478720

約数和(自身を除く): 33721308630

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, 810, 837, 930, 1395, 1674, 2511, 2790, 4185, 5022, 8370, 12555, 25110, 756319, 1512638, 2268957, 3781595, 4537914, 6806871, 7563190, 11344785, 13613742, 20420613, 22689570, 23445889, 34034355, 40841226, 46891778, 61261839, 68068710, 70337667, 102103065, 117229445, 122523678, 140675334, 204206130, 211013001, 234458890, 306309195, 351688335, 422026002, 612618390, 633039003, 703376670, 1055065005, 1266078006, 1899117009, 2110130010, 3165195015, 3798234018, 6330390030, 9495585045, 18991170090]

約数ペア:

[(1, 18991170090), (2, 9495585045), (3, 6330390030), (5, 3798234018), (6, 3165195015), (9, 2110130010), (10, 1899117009), (15, 1266078006), (18, 1055065005), (27, 703376670), (30, 633039003), (31, 612618390), (45, 422026002), (54, 351688335), (62, 306309195), (81, 234458890), (90, 211013001), (93, 204206130), (135, 140675334), (155, 122523678), (162, 117229445), (186, 102103065), (270, 70337667), (279, 68068710), (310, 61261839), (405, 46891778), (465, 40841226), (558, 34034355), (810, 23445889), (837, 22689570), (930, 20420613), (1395, 13613742), (1674, 11344785), (2511, 7563190), (2790, 6806871), (4185, 4537914), (5022, 3781595), (8370, 2268957), (12555, 1512638), (25110, 756319)]