2170220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 5207328

約数和(自身を除く): 3037108

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 491, 884, 982, 1105, 1964, 2210, 2455, 4420, 4910, 6383, 8347, 9820, 12766, 16694, 25532, 31915, 33388, 41735, 63830, 83470, 108511, 127660, 166940, 217022, 434044, 542555, 1085110, 2170220]

約数ペア:

[(1, 2170220), (2, 1085110), (4, 542555), (5, 434044), (10, 217022), (13, 166940), (17, 127660), (20, 108511), (26, 83470), (34, 63830), (52, 41735), (65, 33388), (68, 31915), (85, 25532), (130, 16694), (170, 12766), (221, 9820), (260, 8347), (340, 6383), (442, 4910), (491, 4420), (884, 2455), (982, 2210), (1105, 1964)]