19392880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{643}}^1$

素因数の和:698

約数の個数: 80

約数和(自身を含む): 50309280

約数和(自身を除く): 30916400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 80, 104, 116, 130, 145, 208, 232, 260, 290, 377, 464, 520, 580, 643, 754, 1040, 1160, 1286, 1508, 1885, 2320, 2572, 3016, 3215, 3770, 5144, 6032, 6430, 7540, 8359, 10288, 12860, 15080, 16718, 18647, 25720, 30160, 33436, 37294, 41795, 51440, 66872, 74588, 83590, 93235, 133744, 149176, 167180, 186470, 242411, 298352, 334360, 372940, 484822, 668720, 745880, 969644, 1212055, 1491760, 1939288, 2424110, 3878576, 4848220, 9696440, 19392880]

約数ペア:

[(1, 19392880), (2, 9696440), (4, 4848220), (5, 3878576), (8, 2424110), (10, 1939288), (13, 1491760), (16, 1212055), (20, 969644), (26, 745880), (29, 668720), (40, 484822), (52, 372940), (58, 334360), (65, 298352), (80, 242411), (104, 186470), (116, 167180), (130, 149176), (145, 133744), (208, 93235), (232, 83590), (260, 74588), (290, 66872), (377, 51440), (464, 41795), (520, 37294), (580, 33436), (643, 30160), (754, 25720), (1040, 18647), (1160, 16718), (1286, 15080), (1508, 12860), (1885, 10288), (2320, 8359), (2572, 7540), (3016, 6430), (3215, 6032), (3770, 5144)]