18798260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4253}}^1$

素因数の和:4292

約数の個数: 48

約数和(自身を含む): 45024336

約数和(自身を除く): 26226076

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, 4253, 4420, 8506, 17012, 21265, 42530, 55289, 72301, 85060, 110578, 144602, 221156, 276445, 289204, 361505, 552890, 723010, 939913, 1105780, 1446020, 1879826, 3759652, 4699565, 9399130, 18798260]

約数ペア:

[(1, 18798260), (2, 9399130), (4, 4699565), (5, 3759652), (10, 1879826), (13, 1446020), (17, 1105780), (20, 939913), (26, 723010), (34, 552890), (52, 361505), (65, 289204), (68, 276445), (85, 221156), (130, 144602), (170, 110578), (221, 85060), (260, 72301), (340, 55289), (442, 42530), (884, 21265), (1105, 17012), (2210, 8506), (4253, 4420)]