217387590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{2531}}^1$

素因数の和:2957

約数の個数: 64

約数和(自身を含む): 597957120

約数和(自身を除く): 380569530

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 409, 818, 1227, 2045, 2454, 2531, 2863, 4090, 5062, 5726, 6135, 7593, 8589, 12270, 12655, 14315, 15186, 17178, 17717, 25310, 28630, 35434, 37965, 42945, 53151, 75930, 85890, 88585, 106302, 177170, 265755, 531510, 1035179, 2070358, 3105537, 5175895, 6211074, 7246253, 10351790, 14492506, 15527685, 21738759, 31055370, 36231265, 43477518, 72462530, 108693795, 217387590]

約数ペア:

[(1, 217387590), (2, 108693795), (3, 72462530), (5, 43477518), (6, 36231265), (7, 31055370), (10, 21738759), (14, 15527685), (15, 14492506), (21, 10351790), (30, 7246253), (35, 6211074), (42, 5175895), (70, 3105537), (105, 2070358), (210, 1035179), (409, 531510), (818, 265755), (1227, 177170), (2045, 106302), (2454, 88585), (2531, 85890), (2863, 75930), (4090, 53151), (5062, 42945), (5726, 37965), (6135, 35434), (7593, 28630), (8589, 25310), (12270, 17717), (12655, 17178), (14315, 15186)]