20338320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1021}}^1$

素因数の和:1120

約数の個数: 80

約数和(自身を含む): 63870912

約数和(自身を除く): 43532592

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 83, 120, 166, 240, 249, 332, 415, 498, 664, 830, 996, 1021, 1245, 1328, 1660, 1992, 2042, 2490, 3063, 3320, 3984, 4084, 4980, 5105, 6126, 6640, 8168, 9960, 10210, 12252, 15315, 16336, 19920, 20420, 24504, 30630, 40840, 49008, 61260, 81680, 84743, 122520, 169486, 245040, 254229, 338972, 423715, 508458, 677944, 847430, 1016916, 1271145, 1355888, 1694860, 2033832, 2542290, 3389720, 4067664, 5084580, 6779440, 10169160, 20338320]

約数ペア:

[(1, 20338320), (2, 10169160), (3, 6779440), (4, 5084580), (5, 4067664), (6, 3389720), (8, 2542290), (10, 2033832), (12, 1694860), (15, 1355888), (16, 1271145), (20, 1016916), (24, 847430), (30, 677944), (40, 508458), (48, 423715), (60, 338972), (80, 254229), (83, 245040), (120, 169486), (166, 122520), (240, 84743), (249, 81680), (332, 61260), (415, 49008), (498, 40840), (664, 30630), (830, 24504), (996, 20420), (1021, 19920), (1245, 16336), (1328, 15315), (1660, 12252), (1992, 10210), (2042, 9960), (2490, 8168), (3063, 6640), (3320, 6126), (3984, 5105), (4084, 4980)]