31252720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{709}}^1$

素因数の和:770

約数の個数: 80

約数和(自身を含む): 79236000

約数和(自身を除く): 47983280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 190, 232, 290, 304, 380, 464, 551, 580, 709, 760, 1102, 1160, 1418, 1520, 2204, 2320, 2755, 2836, 3545, 4408, 5510, 5672, 7090, 8816, 11020, 11344, 13471, 14180, 20561, 22040, 26942, 28360, 41122, 44080, 53884, 56720, 67355, 82244, 102805, 107768, 134710, 164488, 205610, 215536, 269420, 328976, 390659, 411220, 538840, 781318, 822440, 1077680, 1562636, 1644880, 1953295, 3125272, 3906590, 6250544, 7813180, 15626360, 31252720]

約数ペア:

[(1, 31252720), (2, 15626360), (4, 7813180), (5, 6250544), (8, 3906590), (10, 3125272), (16, 1953295), (19, 1644880), (20, 1562636), (29, 1077680), (38, 822440), (40, 781318), (58, 538840), (76, 411220), (80, 390659), (95, 328976), (116, 269420), (145, 215536), (152, 205610), (190, 164488), (232, 134710), (290, 107768), (304, 102805), (380, 82244), (464, 67355), (551, 56720), (580, 53884), (709, 44080), (760, 41122), (1102, 28360), (1160, 26942), (1418, 22040), (1520, 20561), (2204, 14180), (2320, 13471), (2755, 11344), (2836, 11020), (3545, 8816), (4408, 7090), (5510, 5672)]