20217094780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{106619}}^1$

素因数の和:107146

約数の個数: 48

約数和(自身を含む): 44780400000

約数和(自身を除く): 24563305220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 499, 998, 1996, 2495, 4990, 9481, 9980, 18962, 37924, 47405, 94810, 106619, 189620, 213238, 426476, 533095, 1066190, 2025761, 2132380, 4051522, 8103044, 10128805, 20257610, 40515220, 53202881, 106405762, 212811524, 266014405, 532028810, 1010854739, 1064057620, 2021709478, 4043418956, 5054273695, 10108547390, 20217094780]

約数ペア:

[(1, 20217094780), (2, 10108547390), (4, 5054273695), (5, 4043418956), (10, 2021709478), (19, 1064057620), (20, 1010854739), (38, 532028810), (76, 266014405), (95, 212811524), (190, 106405762), (380, 53202881), (499, 40515220), (998, 20257610), (1996, 10128805), (2495, 8103044), (4990, 4051522), (9481, 2132380), (9980, 2025761), (18962, 1066190), (37924, 533095), (47405, 426476), (94810, 213238), (106619, 189620)]