18890750

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 38525760

約数和(自身を除く): 19635010

約数列:

[1, 2, 5, 10, 19, 25, 38, 41, 50, 82, 95, 97, 125, 190, 194, 205, 250, 410, 475, 485, 779, 950, 970, 1025, 1558, 1843, 2050, 2375, 2425, 3686, 3895, 3977, 4750, 4850, 5125, 7790, 7954, 9215, 10250, 12125, 18430, 19475, 19885, 24250, 38950, 39770, 46075, 75563, 92150, 97375, 99425, 151126, 194750, 198850, 230375, 377815, 460750, 497125, 755630, 994250, 1889075, 3778150, 9445375, 18890750]

約数ペア:

[(1, 18890750), (2, 9445375), (5, 3778150), (10, 1889075), (19, 994250), (25, 755630), (38, 497125), (41, 460750), (50, 377815), (82, 230375), (95, 198850), (97, 194750), (125, 151126), (190, 99425), (194, 97375), (205, 92150), (250, 75563), (410, 46075), (475, 39770), (485, 38950), (779, 24250), (950, 19885), (970, 19475), (1025, 18430), (1558, 12125), (1843, 10250), (2050, 9215), (2375, 7954), (2425, 7790), (3686, 5125), (3895, 4850), (3977, 4750)]