155420375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 229806720

約数和(自身を除く): 74386345

約数列:

[1, 5, 11, 17, 25, 55, 61, 85, 109, 125, 187, 275, 305, 425, 545, 671, 935, 1037, 1199, 1375, 1525, 1853, 2125, 2725, 3355, 4675, 5185, 5995, 6649, 7625, 9265, 11407, 13625, 16775, 20383, 23375, 25925, 29975, 33245, 46325, 57035, 73139, 83875, 101915, 113033, 129625, 149875, 166225, 231625, 285175, 365695, 509575, 565165, 831125, 1243363, 1425875, 1828475, 2547875, 2825825, 6216815, 9142375, 14129125, 31084075, 155420375]

約数ペア:

[(1, 155420375), (5, 31084075), (11, 14129125), (17, 9142375), (25, 6216815), (55, 2825825), (61, 2547875), (85, 1828475), (109, 1425875), (125, 1243363), (187, 831125), (275, 565165), (305, 509575), (425, 365695), (545, 285175), (671, 231625), (935, 166225), (1037, 149875), (1199, 129625), (1375, 113033), (1525, 101915), (1853, 83875), (2125, 73139), (2725, 57035), (3355, 46325), (4675, 33245), (5185, 29975), (5995, 25925), (6649, 23375), (7625, 20383), (9265, 16775), (11407, 13625)]