20225580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:359

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 40738260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 79, 85, 102, 158, 170, 204, 237, 251, 255, 316, 340, 395, 474, 502, 510, 753, 790, 948, 1004, 1020, 1185, 1255, 1343, 1506, 1580, 2370, 2510, 2686, 3012, 3765, 4029, 4267, 4740, 5020, 5372, 6715, 7530, 8058, 8534, 12801, 13430, 15060, 16116, 17068, 19829, 20145, 21335, 25602, 26860, 39658, 40290, 42670, 51204, 59487, 64005, 79316, 80580, 85340, 99145, 118974, 128010, 198290, 237948, 256020, 297435, 337093, 396580, 594870, 674186, 1011279, 1189740, 1348372, 1685465, 2022558, 3370930, 4045116, 5056395, 6741860, 10112790, 20225580]

約数ペア:

[(1, 20225580), (2, 10112790), (3, 6741860), (4, 5056395), (5, 4045116), (6, 3370930), (10, 2022558), (12, 1685465), (15, 1348372), (17, 1189740), (20, 1011279), (30, 674186), (34, 594870), (51, 396580), (60, 337093), (68, 297435), (79, 256020), (85, 237948), (102, 198290), (158, 128010), (170, 118974), (204, 99145), (237, 85340), (251, 80580), (255, 79316), (316, 64005), (340, 59487), (395, 51204), (474, 42670), (502, 40290), (510, 39658), (753, 26860), (790, 25602), (948, 21335), (1004, 20145), (1020, 19829), (1185, 17068), (1255, 16116), (1343, 15060), (1506, 13430), (1580, 12801), (2370, 8534), (2510, 8058), (2686, 7530), (3012, 6715), (3765, 5372), (4029, 5020), (4267, 4740)]