28410320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18691}}^1$

素因数の和:18723

約数の個数: 40

約数和(自身を含む): 69534240

約数和(自身を除く): 41123920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 18691, 37382, 74764, 93455, 149528, 186910, 299056, 355129, 373820, 710258, 747640, 1420516, 1495280, 1775645, 2841032, 3551290, 5682064, 7102580, 14205160, 28410320]

約数ペア:

[(1, 28410320), (2, 14205160), (4, 7102580), (5, 5682064), (8, 3551290), (10, 2841032), (16, 1775645), (19, 1495280), (20, 1420516), (38, 747640), (40, 710258), (76, 373820), (80, 355129), (95, 299056), (152, 186910), (190, 149528), (304, 93455), (380, 74764), (760, 37382), (1520, 18691)]