128669220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{23059}}^1$

素因数の和:23105

約数の個数: 72

約数和(自身を含む): 402904320

約数和(自身を除く): 274235100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 23059, 46118, 69177, 92236, 115295, 138354, 207531, 230590, 276708, 345885, 415062, 461180, 691770, 714829, 830124, 1037655, 1383540, 1429658, 2075310, 2144487, 2859316, 3574145, 4150620, 4288974, 6433461, 7148290, 8577948, 10722435, 12866922, 14296580, 21444870, 25733844, 32167305, 42889740, 64334610, 128669220]

約数ペア:

[(1, 128669220), (2, 64334610), (3, 42889740), (4, 32167305), (5, 25733844), (6, 21444870), (9, 14296580), (10, 12866922), (12, 10722435), (15, 8577948), (18, 7148290), (20, 6433461), (30, 4288974), (31, 4150620), (36, 3574145), (45, 2859316), (60, 2144487), (62, 2075310), (90, 1429658), (93, 1383540), (124, 1037655), (155, 830124), (180, 714829), (186, 691770), (279, 461180), (310, 415062), (372, 345885), (465, 276708), (558, 230590), (620, 207531), (930, 138354), (1116, 115295), (1395, 92236), (1860, 69177), (2790, 46118), (5580, 23059)]