28822820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6521}}^1$

素因数の和:6560

約数の個数: 48

約数和(自身を含む): 69028848

約数和(自身を除く): 40206028

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 6521, 13042, 26084, 32605, 65210, 84773, 110857, 130420, 169546, 221714, 339092, 423865, 443428, 554285, 847730, 1108570, 1441141, 1695460, 2217140, 2882282, 5764564, 7205705, 14411410, 28822820]

約数ペア:

[(1, 28822820), (2, 14411410), (4, 7205705), (5, 5764564), (10, 2882282), (13, 2217140), (17, 1695460), (20, 1441141), (26, 1108570), (34, 847730), (52, 554285), (65, 443428), (68, 423865), (85, 339092), (130, 221714), (170, 169546), (221, 130420), (260, 110857), (340, 84773), (442, 65210), (884, 32605), (1105, 26084), (2210, 13042), (4420, 6521)]