128327580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:400

約数の個数: 144

約数和(自身を含む): 410941440

約数和(自身を除く): 282613860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 139, 180, 207, 223, 230, 276, 278, 345, 414, 417, 446, 460, 556, 669, 690, 695, 828, 834, 892, 1035, 1115, 1251, 1338, 1380, 1390, 1668, 2007, 2070, 2085, 2230, 2502, 2676, 2780, 3197, 3345, 4014, 4140, 4170, 4460, 5004, 5129, 6255, 6394, 6690, 8028, 8340, 9591, 10035, 10258, 12510, 12788, 13380, 15387, 15985, 19182, 20070, 20516, 25020, 25645, 28773, 30774, 30997, 31970, 38364, 40140, 46161, 47955, 51290, 57546, 61548, 61994, 63940, 76935, 92322, 92991, 95910, 102580, 115092, 123988, 143865, 153870, 154985, 184644, 185982, 191820, 230805, 278973, 287730, 307740, 309970, 371964, 461610, 464955, 557946, 575460, 619940, 712931, 923220, 929910, 1115892, 1394865, 1425862, 1859820, 2138793, 2789730, 2851724, 3564655, 4277586, 5579460, 6416379, 7129310, 8555172, 10693965, 12832758, 14258620, 21387930, 25665516, 32081895, 42775860, 64163790, 128327580]

約数ペア:

[(1, 128327580), (2, 64163790), (3, 42775860), (4, 32081895), (5, 25665516), (6, 21387930), (9, 14258620), (10, 12832758), (12, 10693965), (15, 8555172), (18, 7129310), (20, 6416379), (23, 5579460), (30, 4277586), (36, 3564655), (45, 2851724), (46, 2789730), (60, 2138793), (69, 1859820), (90, 1425862), (92, 1394865), (115, 1115892), (138, 929910), (139, 923220), (180, 712931), (207, 619940), (223, 575460), (230, 557946), (276, 464955), (278, 461610), (345, 371964), (414, 309970), (417, 307740), (446, 287730), (460, 278973), (556, 230805), (669, 191820), (690, 185982), (695, 184644), (828, 154985), (834, 153870), (892, 143865), (1035, 123988), (1115, 115092), (1251, 102580), (1338, 95910), (1380, 92991), (1390, 92322), (1668, 76935), (2007, 63940), (2070, 61994), (2085, 61548), (2230, 57546), (2502, 51290), (2676, 47955), (2780, 46161), (3197, 40140), (3345, 38364), (4014, 31970), (4140, 30997), (4170, 30774), (4460, 28773), (5004, 25645), (5129, 25020), (6255, 20516), (6394, 20070), (6690, 19182), (8028, 15985), (8340, 15387), (9591, 13380), (10035, 12788), (10258, 12510)]