55531775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2$

素因数の和:105

約数の個数: 72

約数和(自身を含む): 86400720

約数和(自身を除く): 30868945

約数列:

[1, 5, 13, 17, 19, 23, 25, 65, 85, 95, 115, 221, 247, 299, 323, 325, 391, 425, 437, 475, 529, 575, 1105, 1235, 1495, 1615, 1955, 2185, 2645, 4199, 5083, 5525, 5681, 6175, 6877, 7429, 7475, 8075, 8993, 9775, 10051, 10925, 13225, 20995, 25415, 28405, 34385, 37145, 44965, 50255, 96577, 104975, 116909, 127075, 130663, 142025, 170867, 171925, 185725, 224825, 251275, 482885, 584545, 653315, 854335, 2221271, 2414425, 2922725, 3266575, 4271675, 11106355, 55531775]

約数ペア:

[(1, 55531775), (5, 11106355), (13, 4271675), (17, 3266575), (19, 2922725), (23, 2414425), (25, 2221271), (65, 854335), (85, 653315), (95, 584545), (115, 482885), (221, 251275), (247, 224825), (299, 185725), (323, 171925), (325, 170867), (391, 142025), (425, 130663), (437, 127075), (475, 116909), (529, 104975), (575, 96577), (1105, 50255), (1235, 44965), (1495, 37145), (1615, 34385), (1955, 28405), (2185, 25415), (2645, 20995), (4199, 13225), (5083, 10925), (5525, 10051), (5681, 9775), (6175, 8993), (6877, 8075), (7429, 7475)]