81155280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19891}}^1$

素因数の和:19924

約数の個数: 80

約数和(自身を含む): 266393664

約数和(自身を除く): 185238384

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 19891, 39782, 59673, 79564, 99455, 119346, 159128, 198910, 238692, 298365, 318256, 338147, 397820, 477384, 596730, 676294, 795640, 954768, 1014441, 1193460, 1352588, 1591280, 1690735, 2028882, 2386920, 2705176, 3381470, 4057764, 4773840, 5072205, 5410352, 6762940, 8115528, 10144410, 13525880, 16231056, 20288820, 27051760, 40577640, 81155280]

約数ペア:

[(1, 81155280), (2, 40577640), (3, 27051760), (4, 20288820), (5, 16231056), (6, 13525880), (8, 10144410), (10, 8115528), (12, 6762940), (15, 5410352), (16, 5072205), (17, 4773840), (20, 4057764), (24, 3381470), (30, 2705176), (34, 2386920), (40, 2028882), (48, 1690735), (51, 1591280), (60, 1352588), (68, 1193460), (80, 1014441), (85, 954768), (102, 795640), (120, 676294), (136, 596730), (170, 477384), (204, 397820), (240, 338147), (255, 318256), (272, 298365), (340, 238692), (408, 198910), (510, 159128), (680, 119346), (816, 99455), (1020, 79564), (1360, 59673), (2040, 39782), (4080, 19891)]