1213340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:162

約数の個数: 48

約数和(自身を含む): 2795520

約数和(自身を除く): 1582180

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 103, 124, 155, 190, 206, 310, 380, 412, 515, 589, 620, 1030, 1178, 1957, 2060, 2356, 2945, 3193, 3914, 5890, 6386, 7828, 9785, 11780, 12772, 15965, 19570, 31930, 39140, 60667, 63860, 121334, 242668, 303335, 606670, 1213340]

約数ペア:

[(1, 1213340), (2, 606670), (4, 303335), (5, 242668), (10, 121334), (19, 63860), (20, 60667), (31, 39140), (38, 31930), (62, 19570), (76, 15965), (95, 12772), (103, 11780), (124, 9785), (155, 7828), (190, 6386), (206, 5890), (310, 3914), (380, 3193), (412, 2945), (515, 2356), (589, 2060), (620, 1957), (1030, 1178)]