20027475

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1$

素因数の和:237

約数の個数: 72

約数和(自身を含む): 39809952

約数和(自身を除く): 19782477

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 41, 45, 65, 75, 117, 123, 167, 195, 205, 225, 325, 369, 501, 533, 585, 615, 835, 975, 1025, 1503, 1599, 1845, 2171, 2505, 2665, 2925, 3075, 4175, 4797, 6513, 6847, 7515, 7995, 9225, 10855, 12525, 13325, 19539, 20541, 23985, 32565, 34235, 37575, 39975, 54275, 61623, 89011, 97695, 102705, 119925, 162825, 171175, 267033, 308115, 445055, 488475, 513525, 801099, 1335165, 1540575, 2225275, 4005495, 6675825, 20027475]

約数ペア:

[(1, 20027475), (3, 6675825), (5, 4005495), (9, 2225275), (13, 1540575), (15, 1335165), (25, 801099), (39, 513525), (41, 488475), (45, 445055), (65, 308115), (75, 267033), (117, 171175), (123, 162825), (167, 119925), (195, 102705), (205, 97695), (225, 89011), (325, 61623), (369, 54275), (501, 39975), (533, 37575), (585, 34235), (615, 32565), (835, 23985), (975, 20541), (1025, 19539), (1503, 13325), (1599, 12525), (1845, 10855), (2171, 9225), (2505, 7995), (2665, 7515), (2925, 6847), (3075, 6513), (4175, 4797)]