252850780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:348

約数の個数: 144

約数和(自身を含む): 675682560

約数和(自身を除く): 422831780

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 89, 91, 98, 130, 140, 178, 182, 196, 223, 245, 260, 356, 364, 445, 446, 455, 490, 623, 637, 890, 892, 910, 980, 1115, 1157, 1246, 1274, 1561, 1780, 1820, 2230, 2314, 2492, 2548, 2899, 3115, 3122, 3185, 4361, 4460, 4628, 5785, 5798, 6230, 6244, 6370, 7805, 8099, 8722, 10927, 11570, 11596, 12460, 12740, 14495, 15610, 16198, 17444, 19847, 20293, 21805, 21854, 23140, 28990, 31220, 32396, 39694, 40495, 40586, 43610, 43708, 54635, 56693, 57980, 79388, 80990, 81172, 87220, 99235, 101465, 109270, 113386, 138929, 142051, 161980, 198470, 202930, 218540, 226772, 258011, 277858, 283465, 284102, 396940, 405860, 516022, 555716, 566930, 568204, 694645, 710255, 972503, 1032044, 1133860, 1290055, 1389290, 1420510, 1806077, 1945006, 2580110, 2778580, 2841020, 3612154, 3890012, 4862515, 5160220, 7224308, 9030385, 9725030, 12642539, 18060770, 19450060, 25285078, 36121540, 50570156, 63212695, 126425390, 252850780]

約数ペア:

[(1, 252850780), (2, 126425390), (4, 63212695), (5, 50570156), (7, 36121540), (10, 25285078), (13, 19450060), (14, 18060770), (20, 12642539), (26, 9725030), (28, 9030385), (35, 7224308), (49, 5160220), (52, 4862515), (65, 3890012), (70, 3612154), (89, 2841020), (91, 2778580), (98, 2580110), (130, 1945006), (140, 1806077), (178, 1420510), (182, 1389290), (196, 1290055), (223, 1133860), (245, 1032044), (260, 972503), (356, 710255), (364, 694645), (445, 568204), (446, 566930), (455, 555716), (490, 516022), (623, 405860), (637, 396940), (890, 284102), (892, 283465), (910, 277858), (980, 258011), (1115, 226772), (1157, 218540), (1246, 202930), (1274, 198470), (1561, 161980), (1780, 142051), (1820, 138929), (2230, 113386), (2314, 109270), (2492, 101465), (2548, 99235), (2899, 87220), (3115, 81172), (3122, 80990), (3185, 79388), (4361, 57980), (4460, 56693), (4628, 54635), (5785, 43708), (5798, 43610), (6230, 40586), (6244, 40495), (6370, 39694), (7805, 32396), (8099, 31220), (8722, 28990), (10927, 23140), (11570, 21854), (11596, 21805), (12460, 20293), (12740, 19847), (14495, 17444), (15610, 16198)]