49591000

素因数分解:

$2^3\times 5^3\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 117430560

約数和(自身を除く): 67839560

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 125, 200, 202, 250, 404, 491, 500, 505, 808, 982, 1000, 1010, 1964, 2020, 2455, 2525, 3928, 4040, 4910, 5050, 9820, 10100, 12275, 12625, 19640, 20200, 24550, 25250, 49100, 49591, 50500, 61375, 98200, 99182, 101000, 122750, 198364, 245500, 247955, 396728, 491000, 495910, 991820, 1239775, 1983640, 2479550, 4959100, 6198875, 9918200, 12397750, 24795500, 49591000]

約数ペア:

[(1, 49591000), (2, 24795500), (4, 12397750), (5, 9918200), (8, 6198875), (10, 4959100), (20, 2479550), (25, 1983640), (40, 1239775), (50, 991820), (100, 495910), (101, 491000), (125, 396728), (200, 247955), (202, 245500), (250, 198364), (404, 122750), (491, 101000), (500, 99182), (505, 98200), (808, 61375), (982, 50500), (1000, 49591), (1010, 49100), (1964, 25250), (2020, 24550), (2455, 20200), (2525, 19640), (3928, 12625), (4040, 12275), (4910, 10100), (5050, 9820)]