204712840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{8689}}^1$

素因数の和:8750

約数の個数: 64

約数和(自身を含む): 500544000

約数和(自身を除く): 295831160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 1178, 1240, 2356, 2945, 4712, 5890, 8689, 11780, 17378, 23560, 34756, 43445, 69512, 86890, 165091, 173780, 269359, 330182, 347560, 538718, 660364, 825455, 1077436, 1320728, 1346795, 1650910, 2154872, 2693590, 3301820, 5117821, 5387180, 6603640, 10235642, 10774360, 20471284, 25589105, 40942568, 51178210, 102356420, 204712840]

約数ペア:

[(1, 204712840), (2, 102356420), (4, 51178210), (5, 40942568), (8, 25589105), (10, 20471284), (19, 10774360), (20, 10235642), (31, 6603640), (38, 5387180), (40, 5117821), (62, 3301820), (76, 2693590), (95, 2154872), (124, 1650910), (152, 1346795), (155, 1320728), (190, 1077436), (248, 825455), (310, 660364), (380, 538718), (589, 347560), (620, 330182), (760, 269359), (1178, 173780), (1240, 165091), (2356, 86890), (2945, 69512), (4712, 43445), (5890, 34756), (8689, 23560), (11780, 17378)]