18971880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:243

約数の個数: 128

約数和(自身を含む): 61430400

約数和(自身を除く): 42458520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 53, 57, 60, 76, 95, 106, 114, 120, 152, 157, 159, 190, 212, 228, 265, 285, 314, 318, 380, 424, 456, 471, 530, 570, 628, 636, 760, 785, 795, 942, 1007, 1060, 1140, 1256, 1272, 1570, 1590, 1884, 2014, 2120, 2280, 2355, 2983, 3021, 3140, 3180, 3768, 4028, 4710, 5035, 5966, 6042, 6280, 6360, 8056, 8321, 8949, 9420, 10070, 11932, 12084, 14915, 15105, 16642, 17898, 18840, 20140, 23864, 24168, 24963, 29830, 30210, 33284, 35796, 40280, 41605, 44745, 49926, 59660, 60420, 66568, 71592, 83210, 89490, 99852, 119320, 120840, 124815, 158099, 166420, 178980, 199704, 249630, 316198, 332840, 357960, 474297, 499260, 632396, 790495, 948594, 998520, 1264792, 1580990, 1897188, 2371485, 3161980, 3794376, 4742970, 6323960, 9485940, 18971880]

約数ペア:

[(1, 18971880), (2, 9485940), (3, 6323960), (4, 4742970), (5, 3794376), (6, 3161980), (8, 2371485), (10, 1897188), (12, 1580990), (15, 1264792), (19, 998520), (20, 948594), (24, 790495), (30, 632396), (38, 499260), (40, 474297), (53, 357960), (57, 332840), (60, 316198), (76, 249630), (95, 199704), (106, 178980), (114, 166420), (120, 158099), (152, 124815), (157, 120840), (159, 119320), (190, 99852), (212, 89490), (228, 83210), (265, 71592), (285, 66568), (314, 60420), (318, 59660), (380, 49926), (424, 44745), (456, 41605), (471, 40280), (530, 35796), (570, 33284), (628, 30210), (636, 29830), (760, 24963), (785, 24168), (795, 23864), (942, 20140), (1007, 18840), (1060, 17898), (1140, 16642), (1256, 15105), (1272, 14915), (1570, 12084), (1590, 11932), (1884, 10070), (2014, 9420), (2120, 8949), (2280, 8321), (2355, 8056), (2983, 6360), (3021, 6280), (3140, 6042), (3180, 5966), (3768, 5035), (4028, 4710)]