28379980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{293}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 62233920

約数和(自身を除く): 33853940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 167, 290, 293, 334, 580, 586, 668, 835, 1172, 1465, 1670, 2930, 3340, 4843, 5860, 8497, 9686, 16994, 19372, 24215, 33988, 42485, 48430, 48931, 84970, 96860, 97862, 169940, 195724, 244655, 489310, 978620, 1418999, 2837998, 5675996, 7094995, 14189990, 28379980]

約数ペア:

[(1, 28379980), (2, 14189990), (4, 7094995), (5, 5675996), (10, 2837998), (20, 1418999), (29, 978620), (58, 489310), (116, 244655), (145, 195724), (167, 169940), (290, 97862), (293, 96860), (334, 84970), (580, 48931), (586, 48430), (668, 42485), (835, 33988), (1172, 24215), (1465, 19372), (1670, 16994), (2930, 9686), (3340, 8497), (4843, 5860)]