247668540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1381}}^1$

素因数の和:1468

約数の個数: 144

約数和(自身を含む): 820509984

約数和(自身を除く): 572841444

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 61, 70, 84, 98, 105, 122, 140, 147, 183, 196, 210, 244, 245, 294, 305, 366, 420, 427, 490, 588, 610, 732, 735, 854, 915, 980, 1220, 1281, 1381, 1470, 1708, 1830, 2135, 2562, 2762, 2940, 2989, 3660, 4143, 4270, 5124, 5524, 5978, 6405, 6905, 8286, 8540, 8967, 9667, 11956, 12810, 13810, 14945, 16572, 17934, 19334, 20715, 25620, 27620, 29001, 29890, 35868, 38668, 41430, 44835, 48335, 58002, 59780, 67669, 82860, 84241, 89670, 96670, 116004, 135338, 145005, 168482, 179340, 193340, 203007, 252723, 270676, 290010, 336964, 338345, 406014, 421205, 505446, 580020, 589687, 676690, 812028, 842410, 1010892, 1015035, 1179374, 1263615, 1353380, 1684820, 1769061, 2030070, 2358748, 2527230, 2948435, 3538122, 4060140, 4127809, 5054460, 5896870, 7076244, 8255618, 8845305, 11793740, 12383427, 16511236, 17690610, 20639045, 24766854, 35381220, 41278090, 49533708, 61917135, 82556180, 123834270, 247668540]

約数ペア:

[(1, 247668540), (2, 123834270), (3, 82556180), (4, 61917135), (5, 49533708), (6, 41278090), (7, 35381220), (10, 24766854), (12, 20639045), (14, 17690610), (15, 16511236), (20, 12383427), (21, 11793740), (28, 8845305), (30, 8255618), (35, 7076244), (42, 5896870), (49, 5054460), (60, 4127809), (61, 4060140), (70, 3538122), (84, 2948435), (98, 2527230), (105, 2358748), (122, 2030070), (140, 1769061), (147, 1684820), (183, 1353380), (196, 1263615), (210, 1179374), (244, 1015035), (245, 1010892), (294, 842410), (305, 812028), (366, 676690), (420, 589687), (427, 580020), (490, 505446), (588, 421205), (610, 406014), (732, 338345), (735, 336964), (854, 290010), (915, 270676), (980, 252723), (1220, 203007), (1281, 193340), (1381, 179340), (1470, 168482), (1708, 145005), (1830, 135338), (2135, 116004), (2562, 96670), (2762, 89670), (2940, 84241), (2989, 82860), (3660, 67669), (4143, 59780), (4270, 58002), (5124, 48335), (5524, 44835), (5978, 41430), (6405, 38668), (6905, 35868), (8286, 29890), (8540, 29001), (8967, 27620), (9667, 25620), (11956, 20715), (12810, 19334), (13810, 17934), (14945, 16572)]