21728040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10651}}^1$

素因数の和:10682

約数の個数: 64

約数和(自身を含む): 69024960

約数和(自身を除く): 47296920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10651, 21302, 31953, 42604, 53255, 63906, 85208, 106510, 127812, 159765, 181067, 213020, 255624, 319530, 362134, 426040, 543201, 639060, 724268, 905335, 1086402, 1278120, 1448536, 1810670, 2172804, 2716005, 3621340, 4345608, 5432010, 7242680, 10864020, 21728040]

約数ペア:

[(1, 21728040), (2, 10864020), (3, 7242680), (4, 5432010), (5, 4345608), (6, 3621340), (8, 2716005), (10, 2172804), (12, 1810670), (15, 1448536), (17, 1278120), (20, 1086402), (24, 905335), (30, 724268), (34, 639060), (40, 543201), (51, 426040), (60, 362134), (68, 319530), (85, 255624), (102, 213020), (120, 181067), (136, 159765), (170, 127812), (204, 106510), (255, 85208), (340, 63906), (408, 53255), (510, 42604), (680, 31953), (1020, 21302), (2040, 10651)]