20993300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:317

約数の個数: 72

約数和(自身を含む): 49356216

約数和(自身を除く): 28362916

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 53, 68, 85, 100, 106, 170, 212, 233, 265, 340, 425, 466, 530, 850, 901, 932, 1060, 1165, 1325, 1700, 1802, 2330, 2650, 3604, 3961, 4505, 4660, 5300, 5825, 7922, 9010, 11650, 12349, 15844, 18020, 19805, 22525, 23300, 24698, 39610, 45050, 49396, 61745, 79220, 90100, 99025, 123490, 198050, 209933, 246980, 308725, 396100, 419866, 617450, 839732, 1049665, 1234900, 2099330, 4198660, 5248325, 10496650, 20993300]

約数ペア:

[(1, 20993300), (2, 10496650), (4, 5248325), (5, 4198660), (10, 2099330), (17, 1234900), (20, 1049665), (25, 839732), (34, 617450), (50, 419866), (53, 396100), (68, 308725), (85, 246980), (100, 209933), (106, 198050), (170, 123490), (212, 99025), (233, 90100), (265, 79220), (340, 61745), (425, 49396), (466, 45050), (530, 39610), (850, 24698), (901, 23300), (932, 22525), (1060, 19805), (1165, 18020), (1325, 15844), (1700, 12349), (1802, 11650), (2330, 9010), (2650, 7922), (3604, 5825), (3961, 5300), (4505, 4660)]