71217320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1129}}^1$

素因数の和:1242

約数の個数: 64

約数和(自身を含む): 170856000

約数和(自身を除く): 99638680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 83, 95, 152, 166, 190, 332, 380, 415, 664, 760, 830, 1129, 1577, 1660, 2258, 3154, 3320, 4516, 5645, 6308, 7885, 9032, 11290, 12616, 15770, 21451, 22580, 31540, 42902, 45160, 63080, 85804, 93707, 107255, 171608, 187414, 214510, 374828, 429020, 468535, 749656, 858040, 937070, 1780433, 1874140, 3560866, 3748280, 7121732, 8902165, 14243464, 17804330, 35608660, 71217320]

約数ペア:

[(1, 71217320), (2, 35608660), (4, 17804330), (5, 14243464), (8, 8902165), (10, 7121732), (19, 3748280), (20, 3560866), (38, 1874140), (40, 1780433), (76, 937070), (83, 858040), (95, 749656), (152, 468535), (166, 429020), (190, 374828), (332, 214510), (380, 187414), (415, 171608), (664, 107255), (760, 93707), (830, 85804), (1129, 63080), (1577, 45160), (1660, 42902), (2258, 31540), (3154, 22580), (3320, 21451), (4516, 15770), (5645, 12616), (6308, 11290), (7885, 9032)]