17946830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 38430720

約数和(自身を除く): 20483890

約数列:

[1, 2, 5, 10, 11, 19, 22, 31, 38, 55, 62, 95, 110, 155, 190, 209, 277, 310, 341, 418, 554, 589, 682, 1045, 1178, 1385, 1705, 2090, 2770, 2945, 3047, 3410, 5263, 5890, 6094, 6479, 8587, 10526, 12958, 15235, 17174, 26315, 30470, 32395, 42935, 52630, 57893, 64790, 85870, 94457, 115786, 163153, 188914, 289465, 326306, 472285, 578930, 815765, 944570, 1631530, 1794683, 3589366, 8973415, 17946830]

約数ペア:

[(1, 17946830), (2, 8973415), (5, 3589366), (10, 1794683), (11, 1631530), (19, 944570), (22, 815765), (31, 578930), (38, 472285), (55, 326306), (62, 289465), (95, 188914), (110, 163153), (155, 115786), (190, 94457), (209, 85870), (277, 64790), (310, 57893), (341, 52630), (418, 42935), (554, 32395), (589, 30470), (682, 26315), (1045, 17174), (1178, 15235), (1385, 12958), (1705, 10526), (2090, 8587), (2770, 6479), (2945, 6094), (3047, 5890), (3410, 5263)]