30240040

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 71280000

約数和(自身を除く): 41039960

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 131, 145, 199, 232, 262, 290, 398, 524, 580, 655, 796, 995, 1048, 1160, 1310, 1592, 1990, 2620, 3799, 3980, 5240, 5771, 7598, 7960, 11542, 15196, 18995, 23084, 26069, 28855, 30392, 37990, 46168, 52138, 57710, 75980, 104276, 115420, 130345, 151960, 208552, 230840, 260690, 521380, 756001, 1042760, 1512002, 3024004, 3780005, 6048008, 7560010, 15120020, 30240040]

約数ペア:

[(1, 30240040), (2, 15120020), (4, 7560010), (5, 6048008), (8, 3780005), (10, 3024004), (20, 1512002), (29, 1042760), (40, 756001), (58, 521380), (116, 260690), (131, 230840), (145, 208552), (199, 151960), (232, 130345), (262, 115420), (290, 104276), (398, 75980), (524, 57710), (580, 52138), (655, 46168), (796, 37990), (995, 30392), (1048, 28855), (1160, 26069), (1310, 23084), (1592, 18995), (1990, 15196), (2620, 11542), (3799, 7960), (3980, 7598), (5240, 5771)]