221751680

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11177}}^1$

素因数の和:11227

約数の個数: 64

約数和(自身を含む): 547274880

約数和(自身を除く): 325523200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 11177, 19840, 22354, 44708, 55885, 89416, 111770, 178832, 223540, 346487, 357664, 447080, 692974, 715328, 894160, 1385948, 1430656, 1732435, 1788320, 2771896, 3464870, 3576640, 5543792, 6929740, 7153280, 11087584, 13859480, 22175168, 27718960, 44350336, 55437920, 110875840, 221751680]

約数ペア:

[(1, 221751680), (2, 110875840), (4, 55437920), (5, 44350336), (8, 27718960), (10, 22175168), (16, 13859480), (20, 11087584), (31, 7153280), (32, 6929740), (40, 5543792), (62, 3576640), (64, 3464870), (80, 2771896), (124, 1788320), (128, 1732435), (155, 1430656), (160, 1385948), (248, 894160), (310, 715328), (320, 692974), (496, 447080), (620, 357664), (640, 346487), (992, 223540), (1240, 178832), (1984, 111770), (2480, 89416), (3968, 55885), (4960, 44708), (9920, 22354), (11177, 19840)]