202108840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{419}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 471744000

約数和(自身を除く): 269635160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 389, 419, 620, 778, 838, 1240, 1556, 1676, 1945, 2095, 3112, 3352, 3890, 4190, 7780, 8380, 12059, 12989, 15560, 16760, 24118, 25978, 48236, 51956, 60295, 64945, 96472, 103912, 120590, 129890, 162991, 241180, 259780, 325982, 482360, 519560, 651964, 814955, 1303928, 1629910, 3259820, 5052721, 6519640, 10105442, 20210884, 25263605, 40421768, 50527210, 101054420, 202108840]

約数ペア:

[(1, 202108840), (2, 101054420), (4, 50527210), (5, 40421768), (8, 25263605), (10, 20210884), (20, 10105442), (31, 6519640), (40, 5052721), (62, 3259820), (124, 1629910), (155, 1303928), (248, 814955), (310, 651964), (389, 519560), (419, 482360), (620, 325982), (778, 259780), (838, 241180), (1240, 162991), (1556, 129890), (1676, 120590), (1945, 103912), (2095, 96472), (3112, 64945), (3352, 60295), (3890, 51956), (4190, 48236), (7780, 25978), (8380, 24118), (12059, 16760), (12989, 15560)]