28274740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6397}}^1$

素因数の和:6436

約数の個数: 48

約数和(自身を含む): 67716432

約数和(自身を除く): 39441692

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, 6397, 12794, 25588, 31985, 63970, 83161, 108749, 127940, 166322, 217498, 332644, 415805, 434996, 543745, 831610, 1087490, 1413737, 1663220, 2174980, 2827474, 5654948, 7068685, 14137370, 28274740]

約数ペア:

[(1, 28274740), (2, 14137370), (4, 7068685), (5, 5654948), (10, 2827474), (13, 2174980), (17, 1663220), (20, 1413737), (26, 1087490), (34, 831610), (52, 543745), (65, 434996), (68, 415805), (85, 332644), (130, 217498), (170, 166322), (221, 127940), (260, 108749), (340, 83161), (442, 63970), (884, 31985), (1105, 25588), (2210, 12794), (4420, 6397)]