79891740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4987}}^1$

素因数の和:5091

約数の個数: 72

約数和(自身を含む): 245110320

約数和(自身を除く): 165218580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 2670, 3204, 4005, 4987, 5340, 8010, 9974, 14961, 16020, 19948, 24935, 29922, 44883, 49870, 59844, 74805, 89766, 99740, 149610, 179532, 224415, 299220, 443843, 448830, 887686, 897660, 1331529, 1775372, 2219215, 2663058, 3994587, 4438430, 5326116, 6657645, 7989174, 8876860, 13315290, 15978348, 19972935, 26630580, 39945870, 79891740]

約数ペア:

[(1, 79891740), (2, 39945870), (3, 26630580), (4, 19972935), (5, 15978348), (6, 13315290), (9, 8876860), (10, 7989174), (12, 6657645), (15, 5326116), (18, 4438430), (20, 3994587), (30, 2663058), (36, 2219215), (45, 1775372), (60, 1331529), (89, 897660), (90, 887686), (178, 448830), (180, 443843), (267, 299220), (356, 224415), (445, 179532), (534, 149610), (801, 99740), (890, 89766), (1068, 74805), (1335, 59844), (1602, 49870), (1780, 44883), (2670, 29922), (3204, 24935), (4005, 19948), (4987, 16020), (5340, 14961), (8010, 9974)]