20308797860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{821}}^1\times {\mathrm{1069}}^1$

素因数の和:2001

約数の個数: 96

約数和(自身を含む): 46545256800

約数和(自身を除く): 26236458940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 821, 890, 1069, 1157, 1642, 1780, 2138, 2314, 3284, 4105, 4276, 4628, 5345, 5785, 8210, 10673, 10690, 11570, 13897, 16420, 21346, 21380, 23140, 27794, 42692, 53365, 55588, 69485, 73069, 95141, 106730, 138970, 146138, 190282, 213460, 277940, 292276, 365345, 380564, 475705, 730690, 877649, 949897, 951410, 1236833, 1461380, 1755298, 1899794, 1902820, 2473666, 3510596, 3799588, 4388245, 4749485, 4947332, 6184165, 8776490, 9498970, 11409437, 12368330, 17552980, 18997940, 22818874, 24736660, 45637748, 57047185, 78110761, 114094370, 156221522, 228188740, 312443044, 390553805, 781107610, 1015439893, 1562215220, 2030879786, 4061759572, 5077199465, 10154398930, 20308797860]

約数ペア:

[(1, 20308797860), (2, 10154398930), (4, 5077199465), (5, 4061759572), (10, 2030879786), (13, 1562215220), (20, 1015439893), (26, 781107610), (52, 390553805), (65, 312443044), (89, 228188740), (130, 156221522), (178, 114094370), (260, 78110761), (356, 57047185), (445, 45637748), (821, 24736660), (890, 22818874), (1069, 18997940), (1157, 17552980), (1642, 12368330), (1780, 11409437), (2138, 9498970), (2314, 8776490), (3284, 6184165), (4105, 4947332), (4276, 4749485), (4628, 4388245), (5345, 3799588), (5785, 3510596), (8210, 2473666), (10673, 1902820), (10690, 1899794), (11570, 1755298), (13897, 1461380), (16420, 1236833), (21346, 951410), (21380, 949897), (23140, 877649), (27794, 730690), (42692, 475705), (53365, 380564), (55588, 365345), (69485, 292276), (73069, 277940), (95141, 213460), (106730, 190282), (138970, 146138)]