20169903760

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^2\times {\mathrm{67757}}^1$

素因数の和:67892

約数の個数: 60

約数和(自身を含む): 47677103604

約数和(自身を除く): 27507199844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 3721, 4880, 7442, 14884, 18605, 29768, 37210, 59536, 67757, 74420, 135514, 148840, 271028, 297680, 338785, 542056, 677570, 1084112, 1355140, 2710280, 4133177, 5420560, 8266354, 16532708, 20665885, 33065416, 41331770, 66130832, 82663540, 165327080, 252123797, 330654160, 504247594, 1008495188, 1260618985, 2016990376, 2521237970, 4033980752, 5042475940, 10084951880, 20169903760]

約数ペア:

[(1, 20169903760), (2, 10084951880), (4, 5042475940), (5, 4033980752), (8, 2521237970), (10, 2016990376), (16, 1260618985), (20, 1008495188), (40, 504247594), (61, 330654160), (80, 252123797), (122, 165327080), (244, 82663540), (305, 66130832), (488, 41331770), (610, 33065416), (976, 20665885), (1220, 16532708), (2440, 8266354), (3721, 5420560), (4880, 4133177), (7442, 2710280), (14884, 1355140), (18605, 1084112), (29768, 677570), (37210, 542056), (59536, 338785), (67757, 297680), (74420, 271028), (135514, 148840)]