28906920

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{11471}}^1$

素因数の和:11495

約数の個数: 96

約数和(自身を含む): 107377920

約数和(自身を除く): 78471000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 11471, 22942, 34413, 45884, 57355, 68826, 80297, 91768, 103239, 114710, 137652, 160594, 172065, 206478, 229420, 240891, 275304, 321188, 344130, 401485, 412956, 458840, 481782, 516195, 642376, 688260, 722673, 802970, 825912, 963564, 1032390, 1204455, 1376520, 1445346, 1605940, 1927128, 2064780, 2408910, 2890692, 3211880, 3613365, 4129560, 4817820, 5781384, 7226730, 9635640, 14453460, 28906920]

約数ペア:

[(1, 28906920), (2, 14453460), (3, 9635640), (4, 7226730), (5, 5781384), (6, 4817820), (7, 4129560), (8, 3613365), (9, 3211880), (10, 2890692), (12, 2408910), (14, 2064780), (15, 1927128), (18, 1605940), (20, 1445346), (21, 1376520), (24, 1204455), (28, 1032390), (30, 963564), (35, 825912), (36, 802970), (40, 722673), (42, 688260), (45, 642376), (56, 516195), (60, 481782), (63, 458840), (70, 412956), (72, 401485), (84, 344130), (90, 321188), (105, 275304), (120, 240891), (126, 229420), (140, 206478), (168, 172065), (180, 160594), (210, 137652), (252, 114710), (280, 103239), (315, 91768), (360, 80297), (420, 68826), (504, 57355), (630, 45884), (840, 34413), (1260, 22942), (2520, 11471)]