1218564840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{1759}}^1$

素因数の和:2047

約数の個数: 128

約数和(自身を含む): 3832012800

約数和(自身を除く): 2613447960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 251, 276, 345, 460, 502, 552, 690, 753, 920, 1004, 1255, 1380, 1506, 1759, 2008, 2510, 2760, 3012, 3518, 3765, 5020, 5277, 5773, 6024, 7036, 7530, 8795, 10040, 10554, 11546, 14072, 15060, 17319, 17590, 21108, 23092, 26385, 28865, 30120, 34638, 35180, 40457, 42216, 46184, 52770, 57730, 69276, 70360, 80914, 86595, 105540, 115460, 121371, 138552, 161828, 173190, 202285, 211080, 230920, 242742, 323656, 346380, 404570, 441509, 485484, 606855, 692760, 809140, 883018, 970968, 1213710, 1324527, 1618280, 1766036, 2207545, 2427420, 2649054, 3532072, 4415090, 4854840, 5298108, 6622635, 8830180, 10154707, 10596216, 13245270, 17660360, 20309414, 26490540, 30464121, 40618828, 50773535, 52981080, 60928242, 81237656, 101547070, 121856484, 152320605, 203094140, 243712968, 304641210, 406188280, 609282420, 1218564840]

約数ペア:

[(1, 1218564840), (2, 609282420), (3, 406188280), (4, 304641210), (5, 243712968), (6, 203094140), (8, 152320605), (10, 121856484), (12, 101547070), (15, 81237656), (20, 60928242), (23, 52981080), (24, 50773535), (30, 40618828), (40, 30464121), (46, 26490540), (60, 20309414), (69, 17660360), (92, 13245270), (115, 10596216), (120, 10154707), (138, 8830180), (184, 6622635), (230, 5298108), (251, 4854840), (276, 4415090), (345, 3532072), (460, 2649054), (502, 2427420), (552, 2207545), (690, 1766036), (753, 1618280), (920, 1324527), (1004, 1213710), (1255, 970968), (1380, 883018), (1506, 809140), (1759, 692760), (2008, 606855), (2510, 485484), (2760, 441509), (3012, 404570), (3518, 346380), (3765, 323656), (5020, 242742), (5277, 230920), (5773, 211080), (6024, 202285), (7036, 173190), (7530, 161828), (8795, 138552), (10040, 121371), (10554, 115460), (11546, 105540), (14072, 86595), (15060, 80914), (17319, 70360), (17590, 69276), (21108, 57730), (23092, 52770), (26385, 46184), (28865, 42216), (30120, 40457), (34638, 35180)]