20267120

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1$

素因数の和:258

約数の個数: 80

約数和(自身を含む): 49871808

約数和(自身を除く): 29604688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 41, 74, 80, 82, 148, 164, 167, 185, 205, 296, 328, 334, 370, 410, 592, 656, 668, 740, 820, 835, 1336, 1480, 1517, 1640, 1670, 2672, 2960, 3034, 3280, 3340, 6068, 6179, 6680, 6847, 7585, 12136, 12358, 13360, 13694, 15170, 24272, 24716, 27388, 30340, 30895, 34235, 49432, 54776, 60680, 61790, 68470, 98864, 109552, 121360, 123580, 136940, 247160, 253339, 273880, 494320, 506678, 547760, 1013356, 1266695, 2026712, 2533390, 4053424, 5066780, 10133560, 20267120]

約数ペア:

[(1, 20267120), (2, 10133560), (4, 5066780), (5, 4053424), (8, 2533390), (10, 2026712), (16, 1266695), (20, 1013356), (37, 547760), (40, 506678), (41, 494320), (74, 273880), (80, 253339), (82, 247160), (148, 136940), (164, 123580), (167, 121360), (185, 109552), (205, 98864), (296, 68470), (328, 61790), (334, 60680), (370, 54776), (410, 49432), (592, 34235), (656, 30895), (668, 30340), (740, 27388), (820, 24716), (835, 24272), (1336, 15170), (1480, 13694), (1517, 13360), (1640, 12358), (1670, 12136), (2672, 7585), (2960, 6847), (3034, 6680), (3280, 6179), (3340, 6068)]