19928790

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{4519}}^1$

素因数の和:4546

約数の個数: 72

約数和(自身を含む): 60287760

約数和(自身を除く): 40358970

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 4519, 9038, 13557, 22595, 27114, 31633, 40671, 45190, 63266, 67785, 81342, 94899, 135570, 158165, 189798, 203355, 221431, 284697, 316330, 406710, 442862, 474495, 569394, 664293, 948990, 1107155, 1328586, 1423485, 1992879, 2214310, 2846970, 3321465, 3985758, 6642930, 9964395, 19928790]

約数ペア:

[(1, 19928790), (2, 9964395), (3, 6642930), (5, 3985758), (6, 3321465), (7, 2846970), (9, 2214310), (10, 1992879), (14, 1423485), (15, 1328586), (18, 1107155), (21, 948990), (30, 664293), (35, 569394), (42, 474495), (45, 442862), (49, 406710), (63, 316330), (70, 284697), (90, 221431), (98, 203355), (105, 189798), (126, 158165), (147, 135570), (210, 94899), (245, 81342), (294, 67785), (315, 63266), (441, 45190), (490, 40671), (630, 31633), (735, 27114), (882, 22595), (1470, 13557), (2205, 9038), (4410, 4519)]