209179980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{19051}}^1$

素因数の和:19127

約数の個数: 72

約数和(自身を含む): 644948304

約数和(自身を除く): 435768324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 19051, 38102, 57153, 76204, 95255, 114306, 171459, 190510, 228612, 285765, 342918, 381020, 571530, 685836, 857295, 1143060, 1162111, 1714590, 2324222, 3429180, 3486333, 4648444, 5810555, 6972666, 10458999, 11621110, 13945332, 17431665, 20917998, 23242220, 34863330, 41835996, 52294995, 69726660, 104589990, 209179980]

約数ペア:

[(1, 209179980), (2, 104589990), (3, 69726660), (4, 52294995), (5, 41835996), (6, 34863330), (9, 23242220), (10, 20917998), (12, 17431665), (15, 13945332), (18, 11621110), (20, 10458999), (30, 6972666), (36, 5810555), (45, 4648444), (60, 3486333), (61, 3429180), (90, 2324222), (122, 1714590), (180, 1162111), (183, 1143060), (244, 857295), (305, 685836), (366, 571530), (549, 381020), (610, 342918), (732, 285765), (915, 228612), (1098, 190510), (1220, 171459), (1830, 114306), (2196, 95255), (2745, 76204), (3660, 57153), (5490, 38102), (10980, 19051)]