123798680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:237

約数の個数: 128

約数和(自身を含む): 312984000

約数和(自身を除く): 189185320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 41, 58, 76, 82, 95, 116, 137, 145, 152, 164, 190, 205, 232, 274, 290, 328, 380, 410, 548, 551, 580, 685, 760, 779, 820, 1096, 1102, 1160, 1189, 1370, 1558, 1640, 2204, 2378, 2603, 2740, 2755, 3116, 3895, 3973, 4408, 4756, 5206, 5480, 5510, 5617, 5945, 6232, 7790, 7946, 9512, 10412, 11020, 11234, 11890, 13015, 15580, 15892, 19865, 20824, 22040, 22468, 22591, 23780, 26030, 28085, 31160, 31784, 39730, 44936, 45182, 47560, 52060, 56170, 75487, 79460, 90364, 104120, 106723, 112340, 112955, 150974, 158920, 162893, 180728, 213446, 224680, 225910, 301948, 325786, 377435, 426892, 451820, 533615, 603896, 651572, 754870, 814465, 853784, 903640, 1067230, 1303144, 1509740, 1628930, 2134460, 3019480, 3094967, 3257860, 4268920, 6189934, 6515720, 12379868, 15474835, 24759736, 30949670, 61899340, 123798680]

約数ペア:

[(1, 123798680), (2, 61899340), (4, 30949670), (5, 24759736), (8, 15474835), (10, 12379868), (19, 6515720), (20, 6189934), (29, 4268920), (38, 3257860), (40, 3094967), (41, 3019480), (58, 2134460), (76, 1628930), (82, 1509740), (95, 1303144), (116, 1067230), (137, 903640), (145, 853784), (152, 814465), (164, 754870), (190, 651572), (205, 603896), (232, 533615), (274, 451820), (290, 426892), (328, 377435), (380, 325786), (410, 301948), (548, 225910), (551, 224680), (580, 213446), (685, 180728), (760, 162893), (779, 158920), (820, 150974), (1096, 112955), (1102, 112340), (1160, 106723), (1189, 104120), (1370, 90364), (1558, 79460), (1640, 75487), (2204, 56170), (2378, 52060), (2603, 47560), (2740, 45182), (2755, 44936), (3116, 39730), (3895, 31784), (3973, 31160), (4408, 28085), (4756, 26030), (5206, 23780), (5480, 22591), (5510, 22468), (5617, 22040), (5945, 20824), (6232, 19865), (7790, 15892), (7946, 15580), (9512, 13015), (10412, 11890), (11020, 11234)]