30999260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{97}}^1$

素因数の和:183

約数の個数: 72

約数和(自身を含む): 71700720

約数和(自身を除く): 40701460

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 97, 116, 145, 190, 194, 290, 380, 388, 485, 551, 580, 841, 970, 1102, 1682, 1843, 1940, 2204, 2755, 2813, 3364, 3686, 4205, 5510, 5626, 7372, 8410, 9215, 11020, 11252, 14065, 15979, 16820, 18430, 28130, 31958, 36860, 53447, 56260, 63916, 79895, 81577, 106894, 159790, 163154, 213788, 267235, 319580, 326308, 407885, 534470, 815770, 1068940, 1549963, 1631540, 3099926, 6199852, 7749815, 15499630, 30999260]

約数ペア:

[(1, 30999260), (2, 15499630), (4, 7749815), (5, 6199852), (10, 3099926), (19, 1631540), (20, 1549963), (29, 1068940), (38, 815770), (58, 534470), (76, 407885), (95, 326308), (97, 319580), (116, 267235), (145, 213788), (190, 163154), (194, 159790), (290, 106894), (380, 81577), (388, 79895), (485, 63916), (551, 56260), (580, 53447), (841, 36860), (970, 31958), (1102, 28130), (1682, 18430), (1843, 16820), (1940, 15979), (2204, 14065), (2755, 11252), (2813, 11020), (3364, 9215), (3686, 8410), (4205, 7372), (5510, 5626)]