28134820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1511}}^1$

素因数の和:1553

約数の個数: 72

約数和(自身を含む): 72394560

約数和(自身を除く): 44259740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1511, 1862, 2660, 3022, 3724, 4655, 6044, 7555, 9310, 10577, 15110, 18620, 21154, 28709, 30220, 42308, 52885, 57418, 74039, 105770, 114836, 143545, 148078, 200963, 211540, 287090, 296156, 370195, 401926, 574180, 740390, 803852, 1004815, 1406741, 1480780, 2009630, 2813482, 4019260, 5626964, 7033705, 14067410, 28134820]

約数ペア:

[(1, 28134820), (2, 14067410), (4, 7033705), (5, 5626964), (7, 4019260), (10, 2813482), (14, 2009630), (19, 1480780), (20, 1406741), (28, 1004815), (35, 803852), (38, 740390), (49, 574180), (70, 401926), (76, 370195), (95, 296156), (98, 287090), (133, 211540), (140, 200963), (190, 148078), (196, 143545), (245, 114836), (266, 105770), (380, 74039), (490, 57418), (532, 52885), (665, 42308), (931, 30220), (980, 28709), (1330, 21154), (1511, 18620), (1862, 15110), (2660, 10577), (3022, 9310), (3724, 7555), (4655, 6044)]