291154920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{20389}}^1$

素因数の和:20427

約数の個数: 128

約数和(自身を含む): 1057017600

約数和(自身を除く): 765862680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1785, 2040, 2380, 2856, 3570, 4760, 7140, 14280, 20389, 40778, 61167, 81556, 101945, 122334, 142723, 163112, 203890, 244668, 285446, 305835, 346613, 407780, 428169, 489336, 570892, 611670, 693226, 713615, 815560, 856338, 1039839, 1141784, 1223340, 1386452, 1427230, 1712676, 1733065, 2079678, 2140845, 2426291, 2446680, 2772904, 2854460, 3425352, 3466130, 4159356, 4281690, 4852582, 5199195, 5708920, 6932260, 7278873, 8318712, 8563380, 9705164, 10398390, 12131455, 13864520, 14557746, 17126760, 19410328, 20796780, 24262910, 29115492, 36394365, 41593560, 48525820, 58230984, 72788730, 97051640, 145577460, 291154920]

約数ペア:

[(1, 291154920), (2, 145577460), (3, 97051640), (4, 72788730), (5, 58230984), (6, 48525820), (7, 41593560), (8, 36394365), (10, 29115492), (12, 24262910), (14, 20796780), (15, 19410328), (17, 17126760), (20, 14557746), (21, 13864520), (24, 12131455), (28, 10398390), (30, 9705164), (34, 8563380), (35, 8318712), (40, 7278873), (42, 6932260), (51, 5708920), (56, 5199195), (60, 4852582), (68, 4281690), (70, 4159356), (84, 3466130), (85, 3425352), (102, 2854460), (105, 2772904), (119, 2446680), (120, 2426291), (136, 2140845), (140, 2079678), (168, 1733065), (170, 1712676), (204, 1427230), (210, 1386452), (238, 1223340), (255, 1141784), (280, 1039839), (340, 856338), (357, 815560), (408, 713615), (420, 693226), (476, 611670), (510, 570892), (595, 489336), (680, 428169), (714, 407780), (840, 346613), (952, 305835), (1020, 285446), (1190, 244668), (1428, 203890), (1785, 163112), (2040, 142723), (2380, 122334), (2856, 101945), (3570, 81556), (4760, 61167), (7140, 40778), (14280, 20389)]