206742420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{991}}^1$

素因数の和:1086

約数の個数: 144

約数和(自身を含む): 671623680

約数和(自身を除く): 464881260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 61, 76, 90, 95, 114, 122, 171, 180, 183, 190, 228, 244, 285, 305, 342, 366, 380, 549, 570, 610, 684, 732, 855, 915, 991, 1098, 1140, 1159, 1220, 1710, 1830, 1982, 2196, 2318, 2745, 2973, 3420, 3477, 3660, 3964, 4636, 4955, 5490, 5795, 5946, 6954, 8919, 9910, 10431, 10980, 11590, 11892, 13908, 14865, 17385, 17838, 18829, 19820, 20862, 23180, 29730, 34770, 35676, 37658, 41724, 44595, 52155, 56487, 59460, 60451, 69540, 75316, 89190, 94145, 104310, 112974, 120902, 169461, 178380, 181353, 188290, 208620, 225948, 241804, 282435, 302255, 338922, 362706, 376580, 544059, 564870, 604510, 677844, 725412, 847305, 906765, 1088118, 1129740, 1148569, 1209020, 1694610, 1813530, 2176236, 2297138, 2720295, 3389220, 3445707, 3627060, 4594276, 5440590, 5742845, 6891414, 10337121, 10881180, 11485690, 13782828, 17228535, 20674242, 22971380, 34457070, 41348484, 51685605, 68914140, 103371210, 206742420]

約数ペア:

[(1, 206742420), (2, 103371210), (3, 68914140), (4, 51685605), (5, 41348484), (6, 34457070), (9, 22971380), (10, 20674242), (12, 17228535), (15, 13782828), (18, 11485690), (19, 10881180), (20, 10337121), (30, 6891414), (36, 5742845), (38, 5440590), (45, 4594276), (57, 3627060), (60, 3445707), (61, 3389220), (76, 2720295), (90, 2297138), (95, 2176236), (114, 1813530), (122, 1694610), (171, 1209020), (180, 1148569), (183, 1129740), (190, 1088118), (228, 906765), (244, 847305), (285, 725412), (305, 677844), (342, 604510), (366, 564870), (380, 544059), (549, 376580), (570, 362706), (610, 338922), (684, 302255), (732, 282435), (855, 241804), (915, 225948), (991, 208620), (1098, 188290), (1140, 181353), (1159, 178380), (1220, 169461), (1710, 120902), (1830, 112974), (1982, 104310), (2196, 94145), (2318, 89190), (2745, 75316), (2973, 69540), (3420, 60451), (3477, 59460), (3660, 56487), (3964, 52155), (4636, 44595), (4955, 41724), (5490, 37658), (5795, 35676), (5946, 34770), (6954, 29730), (8919, 23180), (9910, 20862), (10431, 19820), (10980, 18829), (11590, 17838), (11892, 17385), (13908, 14865)]