388105120

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:535

約数の個数: 144

約数和(自身を含む): 1027095552

約数和(自身を除く): 638990432

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 169, 208, 248, 260, 310, 338, 403, 416, 463, 496, 520, 620, 676, 806, 845, 926, 992, 1040, 1240, 1352, 1612, 1690, 1852, 2015, 2080, 2315, 2480, 2704, 3224, 3380, 3704, 4030, 4630, 4960, 5239, 5408, 6019, 6448, 6760, 7408, 8060, 9260, 10478, 12038, 12896, 13520, 14353, 14816, 16120, 18520, 20956, 24076, 26195, 27040, 28706, 30095, 32240, 37040, 41912, 48152, 52390, 57412, 60190, 64480, 71765, 74080, 78247, 83824, 96304, 104780, 114824, 120380, 143530, 156494, 167648, 186589, 192608, 209560, 229648, 240760, 287060, 312988, 373178, 391235, 419120, 459296, 481520, 574120, 625976, 746356, 782470, 838240, 932945, 963040, 1148240, 1251952, 1492712, 1564940, 1865890, 2296480, 2425657, 2503904, 2985424, 3129880, 3731780, 4851314, 5970848, 6259760, 7463560, 9702628, 12128285, 12519520, 14927120, 19405256, 24256570, 29854240, 38810512, 48513140, 77621024, 97026280, 194052560, 388105120]

約数ペア:

[(1, 388105120), (2, 194052560), (4, 97026280), (5, 77621024), (8, 48513140), (10, 38810512), (13, 29854240), (16, 24256570), (20, 19405256), (26, 14927120), (31, 12519520), (32, 12128285), (40, 9702628), (52, 7463560), (62, 6259760), (65, 5970848), (80, 4851314), (104, 3731780), (124, 3129880), (130, 2985424), (155, 2503904), (160, 2425657), (169, 2296480), (208, 1865890), (248, 1564940), (260, 1492712), (310, 1251952), (338, 1148240), (403, 963040), (416, 932945), (463, 838240), (496, 782470), (520, 746356), (620, 625976), (676, 574120), (806, 481520), (845, 459296), (926, 419120), (992, 391235), (1040, 373178), (1240, 312988), (1352, 287060), (1612, 240760), (1690, 229648), (1852, 209560), (2015, 192608), (2080, 186589), (2315, 167648), (2480, 156494), (2704, 143530), (3224, 120380), (3380, 114824), (3704, 104780), (4030, 96304), (4630, 83824), (4960, 78247), (5239, 74080), (5408, 71765), (6019, 64480), (6448, 60190), (6760, 57412), (7408, 52390), (8060, 48152), (9260, 41912), (10478, 37040), (12038, 32240), (12896, 30095), (13520, 28706), (14353, 27040), (14816, 26195), (16120, 24076), (18520, 20956)]