28227160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2857}}^1$

素因数の和:2900

約数の個数: 64

約数和(自身を含む): 72021600

約数和(自身を除く): 43794440

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 2857, 4940, 5714, 9880, 11428, 14285, 22856, 28570, 37141, 54283, 57140, 74282, 108566, 114280, 148564, 185705, 217132, 271415, 297128, 371410, 434264, 542830, 705679, 742820, 1085660, 1411358, 1485640, 2171320, 2822716, 3528395, 5645432, 7056790, 14113580, 28227160]

約数ペア:

[(1, 28227160), (2, 14113580), (4, 7056790), (5, 5645432), (8, 3528395), (10, 2822716), (13, 2171320), (19, 1485640), (20, 1411358), (26, 1085660), (38, 742820), (40, 705679), (52, 542830), (65, 434264), (76, 371410), (95, 297128), (104, 271415), (130, 217132), (152, 185705), (190, 148564), (247, 114280), (260, 108566), (380, 74282), (494, 57140), (520, 54283), (760, 37141), (988, 28570), (1235, 22856), (1976, 14285), (2470, 11428), (2857, 9880), (4940, 5714)]