221280120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{619}}^1$

素因数の和:970

約数の個数: 128

約数和(自身を含む): 741024000

約数和(自身を除く): 519743880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 331, 360, 540, 619, 662, 993, 1080, 1238, 1324, 1655, 1857, 1986, 2476, 2648, 2979, 3095, 3310, 3714, 3972, 4952, 4965, 5571, 5958, 6190, 6620, 7428, 7944, 8937, 9285, 9930, 11142, 11916, 12380, 13240, 14856, 14895, 16713, 17874, 18570, 19860, 22284, 23832, 24760, 27855, 29790, 33426, 35748, 37140, 39720, 44568, 44685, 55710, 59580, 66852, 71496, 74280, 83565, 89370, 111420, 119160, 133704, 167130, 178740, 204889, 222840, 334260, 357480, 409778, 614667, 668520, 819556, 1024445, 1229334, 1639112, 1844001, 2048890, 2458668, 3073335, 3688002, 4097780, 4917336, 5532003, 6146670, 7376004, 8195560, 9220005, 11064006, 12293340, 14752008, 18440010, 22128012, 24586680, 27660015, 36880020, 44256024, 55320030, 73760040, 110640060, 221280120]

約数ペア:

[(1, 221280120), (2, 110640060), (3, 73760040), (4, 55320030), (5, 44256024), (6, 36880020), (8, 27660015), (9, 24586680), (10, 22128012), (12, 18440010), (15, 14752008), (18, 12293340), (20, 11064006), (24, 9220005), (27, 8195560), (30, 7376004), (36, 6146670), (40, 5532003), (45, 4917336), (54, 4097780), (60, 3688002), (72, 3073335), (90, 2458668), (108, 2048890), (120, 1844001), (135, 1639112), (180, 1229334), (216, 1024445), (270, 819556), (331, 668520), (360, 614667), (540, 409778), (619, 357480), (662, 334260), (993, 222840), (1080, 204889), (1238, 178740), (1324, 167130), (1655, 133704), (1857, 119160), (1986, 111420), (2476, 89370), (2648, 83565), (2979, 74280), (3095, 71496), (3310, 66852), (3714, 59580), (3972, 55710), (4952, 44685), (4965, 44568), (5571, 39720), (5958, 37140), (6190, 35748), (6620, 33426), (7428, 29790), (7944, 27855), (8937, 24760), (9285, 23832), (9930, 22284), (11142, 19860), (11916, 18570), (12380, 17874), (13240, 16713), (14856, 14895)]