28107080

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1193}}^1$

素因数の和:1254

約数の個数: 64

約数和(自身を含む): 68774400

約数和(自身を除く): 40667320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 1178, 1193, 1240, 2356, 2386, 2945, 4712, 4772, 5890, 5965, 9544, 11780, 11930, 22667, 23560, 23860, 36983, 45334, 47720, 73966, 90668, 113335, 147932, 181336, 184915, 226670, 295864, 369830, 453340, 702677, 739660, 906680, 1405354, 1479320, 2810708, 3513385, 5621416, 7026770, 14053540, 28107080]

約数ペア:

[(1, 28107080), (2, 14053540), (4, 7026770), (5, 5621416), (8, 3513385), (10, 2810708), (19, 1479320), (20, 1405354), (31, 906680), (38, 739660), (40, 702677), (62, 453340), (76, 369830), (95, 295864), (124, 226670), (152, 184915), (155, 181336), (190, 147932), (248, 113335), (310, 90668), (380, 73966), (589, 47720), (620, 45334), (760, 36983), (1178, 23860), (1193, 23560), (1240, 22667), (2356, 11930), (2386, 11780), (2945, 9544), (4712, 5965), (4772, 5890)]