18702380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{821}}^1$

素因数の和:914

約数の個数: 48

約数和(自身を含む): 42257376

約数和(自身を除く): 23554996

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 134, 170, 268, 335, 340, 670, 821, 1139, 1340, 1642, 2278, 3284, 4105, 4556, 5695, 8210, 11390, 13957, 16420, 22780, 27914, 55007, 55828, 69785, 110014, 139570, 220028, 275035, 279140, 550070, 935119, 1100140, 1870238, 3740476, 4675595, 9351190, 18702380]

約数ペア:

[(1, 18702380), (2, 9351190), (4, 4675595), (5, 3740476), (10, 1870238), (17, 1100140), (20, 935119), (34, 550070), (67, 279140), (68, 275035), (85, 220028), (134, 139570), (170, 110014), (268, 69785), (335, 55828), (340, 55007), (670, 27914), (821, 22780), (1139, 16420), (1340, 13957), (1642, 11390), (2278, 8210), (3284, 5695), (4105, 4556)]