40664780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{227}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 94630032

約数和(自身を除く): 53965252

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 169, 212, 227, 260, 265, 338, 454, 530, 676, 689, 845, 908, 1060, 1135, 1378, 1690, 2270, 2756, 2951, 3380, 3445, 4540, 5902, 6890, 8957, 11804, 12031, 13780, 14755, 17914, 24062, 29510, 35828, 38363, 44785, 48124, 59020, 60155, 76726, 89570, 120310, 153452, 156403, 179140, 191815, 240620, 312806, 383630, 625612, 767260, 782015, 1564030, 2033239, 3128060, 4066478, 8132956, 10166195, 20332390, 40664780]

約数ペア:

[(1, 40664780), (2, 20332390), (4, 10166195), (5, 8132956), (10, 4066478), (13, 3128060), (20, 2033239), (26, 1564030), (52, 782015), (53, 767260), (65, 625612), (106, 383630), (130, 312806), (169, 240620), (212, 191815), (227, 179140), (260, 156403), (265, 153452), (338, 120310), (454, 89570), (530, 76726), (676, 60155), (689, 59020), (845, 48124), (908, 44785), (1060, 38363), (1135, 35828), (1378, 29510), (1690, 24062), (2270, 17914), (2756, 14755), (2951, 13780), (3380, 12031), (3445, 11804), (4540, 8957), (5902, 6890)]