21819700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:162

約数の個数: 108

約数和(自身を含む): 56748972

約数和(自身を除く): 34929272

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 61, 70, 73, 98, 100, 122, 140, 146, 175, 196, 244, 245, 292, 305, 350, 365, 427, 490, 511, 610, 700, 730, 854, 980, 1022, 1220, 1225, 1460, 1525, 1708, 1825, 2044, 2135, 2450, 2555, 2989, 3050, 3577, 3650, 4270, 4453, 4900, 5110, 5978, 6100, 7154, 7300, 8540, 8906, 10220, 10675, 11956, 12775, 14308, 14945, 17812, 17885, 21350, 22265, 25550, 29890, 31171, 35770, 42700, 44530, 51100, 59780, 62342, 71540, 74725, 89060, 89425, 111325, 124684, 149450, 155855, 178850, 218197, 222650, 298900, 311710, 357700, 436394, 445300, 623420, 779275, 872788, 1090985, 1558550, 2181970, 3117100, 4363940, 5454925, 10909850, 21819700]

約数ペア:

[(1, 21819700), (2, 10909850), (4, 5454925), (5, 4363940), (7, 3117100), (10, 2181970), (14, 1558550), (20, 1090985), (25, 872788), (28, 779275), (35, 623420), (49, 445300), (50, 436394), (61, 357700), (70, 311710), (73, 298900), (98, 222650), (100, 218197), (122, 178850), (140, 155855), (146, 149450), (175, 124684), (196, 111325), (244, 89425), (245, 89060), (292, 74725), (305, 71540), (350, 62342), (365, 59780), (427, 51100), (490, 44530), (511, 42700), (610, 35770), (700, 31171), (730, 29890), (854, 25550), (980, 22265), (1022, 21350), (1220, 17885), (1225, 17812), (1460, 14945), (1525, 14308), (1708, 12775), (1825, 11956), (2044, 10675), (2135, 10220), (2450, 8906), (2555, 8540), (2989, 7300), (3050, 7154), (3577, 6100), (3650, 5978), (4270, 5110), (4453, 4900)]