642672120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{75431}}^1$

素因数の和:75516

約数の個数: 64

約数和(自身を含む): 1955197440

約数和(自身を除く): 1312525320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2840, 4260, 8520, 75431, 150862, 226293, 301724, 377155, 452586, 603448, 754310, 905172, 1131465, 1508620, 1810344, 2262930, 3017240, 4525860, 5355601, 9051720, 10711202, 16066803, 21422404, 26778005, 32133606, 42844808, 53556010, 64267212, 80334015, 107112020, 128534424, 160668030, 214224040, 321336060, 642672120]

約数ペア:

[(1, 642672120), (2, 321336060), (3, 214224040), (4, 160668030), (5, 128534424), (6, 107112020), (8, 80334015), (10, 64267212), (12, 53556010), (15, 42844808), (20, 32133606), (24, 26778005), (30, 21422404), (40, 16066803), (60, 10711202), (71, 9051720), (120, 5355601), (142, 4525860), (213, 3017240), (284, 2262930), (355, 1810344), (426, 1508620), (568, 1131465), (710, 905172), (852, 754310), (1065, 603448), (1420, 452586), (1704, 377155), (2130, 301724), (2840, 226293), (4260, 150862), (8520, 75431)]