80512680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:739

約数の個数: 128

約数和(自身を含む): 260340480

約数和(自身を除く): 179827800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 61, 68, 85, 102, 120, 122, 136, 170, 183, 204, 244, 255, 305, 340, 366, 408, 488, 510, 610, 647, 680, 732, 915, 1020, 1037, 1220, 1294, 1464, 1830, 1941, 2040, 2074, 2440, 2588, 3111, 3235, 3660, 3882, 4148, 5176, 5185, 6222, 6470, 7320, 7764, 8296, 9705, 10370, 10999, 12444, 12940, 15528, 15555, 19410, 20740, 21998, 24888, 25880, 31110, 32997, 38820, 39467, 41480, 43996, 54995, 62220, 65994, 77640, 78934, 87992, 109990, 118401, 124440, 131988, 157868, 164985, 197335, 219980, 236802, 263976, 315736, 329970, 394670, 439960, 473604, 592005, 659940, 670939, 789340, 947208, 1184010, 1319880, 1341878, 1578680, 2012817, 2368020, 2683756, 3354695, 4025634, 4736040, 5367512, 6709390, 8051268, 10064085, 13418780, 16102536, 20128170, 26837560, 40256340, 80512680]

約数ペア:

[(1, 80512680), (2, 40256340), (3, 26837560), (4, 20128170), (5, 16102536), (6, 13418780), (8, 10064085), (10, 8051268), (12, 6709390), (15, 5367512), (17, 4736040), (20, 4025634), (24, 3354695), (30, 2683756), (34, 2368020), (40, 2012817), (51, 1578680), (60, 1341878), (61, 1319880), (68, 1184010), (85, 947208), (102, 789340), (120, 670939), (122, 659940), (136, 592005), (170, 473604), (183, 439960), (204, 394670), (244, 329970), (255, 315736), (305, 263976), (340, 236802), (366, 219980), (408, 197335), (488, 164985), (510, 157868), (610, 131988), (647, 124440), (680, 118401), (732, 109990), (915, 87992), (1020, 78934), (1037, 77640), (1220, 65994), (1294, 62220), (1464, 54995), (1830, 43996), (1941, 41480), (2040, 39467), (2074, 38820), (2440, 32997), (2588, 31110), (3111, 25880), (3235, 24888), (3660, 21998), (3882, 20740), (4148, 19410), (5176, 15555), (5185, 15528), (6222, 12940), (6470, 12444), (7320, 10999), (7764, 10370), (8296, 9705)]