20909928

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2311}}^1$

素因数の和:2362

約数の個数: 64

約数和(自身を含む): 58262400

約数和(自身を除く): 37352472

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 29, 39, 52, 58, 78, 87, 104, 116, 156, 174, 232, 312, 348, 377, 696, 754, 1131, 1508, 2262, 2311, 3016, 4524, 4622, 6933, 9048, 9244, 13866, 18488, 27732, 30043, 55464, 60086, 67019, 90129, 120172, 134038, 180258, 201057, 240344, 268076, 360516, 402114, 536152, 721032, 804228, 871247, 1608456, 1742494, 2613741, 3484988, 5227482, 6969976, 10454964, 20909928]

約数ペア:

[(1, 20909928), (2, 10454964), (3, 6969976), (4, 5227482), (6, 3484988), (8, 2613741), (12, 1742494), (13, 1608456), (24, 871247), (26, 804228), (29, 721032), (39, 536152), (52, 402114), (58, 360516), (78, 268076), (87, 240344), (104, 201057), (116, 180258), (156, 134038), (174, 120172), (232, 90129), (312, 67019), (348, 60086), (377, 55464), (696, 30043), (754, 27732), (1131, 18488), (1508, 13866), (2262, 9244), (2311, 9048), (3016, 6933), (4524, 4622)]