428520120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{8363}}^1$

素因数の和:8445

約数の個数: 128

約数和(自身を含む): 1493475840

約数和(自身を除く): 1064955720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 61, 70, 84, 105, 120, 122, 140, 168, 183, 210, 244, 280, 305, 366, 420, 427, 488, 610, 732, 840, 854, 915, 1220, 1281, 1464, 1708, 1830, 2135, 2440, 2562, 3416, 3660, 4270, 5124, 6405, 7320, 8363, 8540, 10248, 12810, 16726, 17080, 25089, 25620, 33452, 41815, 50178, 51240, 58541, 66904, 83630, 100356, 117082, 125445, 167260, 175623, 200712, 234164, 250890, 292705, 334520, 351246, 468328, 501780, 510143, 585410, 702492, 878115, 1003560, 1020286, 1170820, 1404984, 1530429, 1756230, 2040572, 2341640, 2550715, 3060858, 3512460, 3571001, 4081144, 5101430, 6121716, 7024920, 7142002, 7652145, 10202860, 10713003, 12243432, 14284004, 15304290, 17855005, 20405720, 21426006, 28568008, 30608580, 35710010, 42852012, 53565015, 61217160, 71420020, 85704024, 107130030, 142840040, 214260060, 428520120]

約数ペア:

[(1, 428520120), (2, 214260060), (3, 142840040), (4, 107130030), (5, 85704024), (6, 71420020), (7, 61217160), (8, 53565015), (10, 42852012), (12, 35710010), (14, 30608580), (15, 28568008), (20, 21426006), (21, 20405720), (24, 17855005), (28, 15304290), (30, 14284004), (35, 12243432), (40, 10713003), (42, 10202860), (56, 7652145), (60, 7142002), (61, 7024920), (70, 6121716), (84, 5101430), (105, 4081144), (120, 3571001), (122, 3512460), (140, 3060858), (168, 2550715), (183, 2341640), (210, 2040572), (244, 1756230), (280, 1530429), (305, 1404984), (366, 1170820), (420, 1020286), (427, 1003560), (488, 878115), (610, 702492), (732, 585410), (840, 510143), (854, 501780), (915, 468328), (1220, 351246), (1281, 334520), (1464, 292705), (1708, 250890), (1830, 234164), (2135, 200712), (2440, 175623), (2562, 167260), (3416, 125445), (3660, 117082), (4270, 100356), (5124, 83630), (6405, 66904), (7320, 58541), (8363, 51240), (8540, 50178), (10248, 41815), (12810, 33452), (16726, 25620), (17080, 25089)]