90311680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:625

約数の個数: 88

約数和(自身を含む): 224023680

約数和(自身を除く): 133712000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 569, 620, 640, 992, 1024, 1138, 1240, 1280, 1984, 2276, 2480, 2560, 2845, 3968, 4552, 4960, 5120, 5690, 7936, 9104, 9920, 11380, 15872, 17639, 18208, 19840, 22760, 31744, 35278, 36416, 39680, 45520, 70556, 72832, 79360, 88195, 91040, 141112, 145664, 158720, 176390, 182080, 282224, 291328, 352780, 364160, 564448, 582656, 705560, 728320, 1128896, 1411120, 1456640, 2257792, 2822240, 2913280, 4515584, 5644480, 9031168, 11288960, 18062336, 22577920, 45155840, 90311680]

約数ペア:

[(1, 90311680), (2, 45155840), (4, 22577920), (5, 18062336), (8, 11288960), (10, 9031168), (16, 5644480), (20, 4515584), (31, 2913280), (32, 2822240), (40, 2257792), (62, 1456640), (64, 1411120), (80, 1128896), (124, 728320), (128, 705560), (155, 582656), (160, 564448), (248, 364160), (256, 352780), (310, 291328), (320, 282224), (496, 182080), (512, 176390), (569, 158720), (620, 145664), (640, 141112), (992, 91040), (1024, 88195), (1138, 79360), (1240, 72832), (1280, 70556), (1984, 45520), (2276, 39680), (2480, 36416), (2560, 35278), (2845, 31744), (3968, 22760), (4552, 19840), (4960, 18208), (5120, 17639), (5690, 15872), (7936, 11380), (9104, 9920)]