28420770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1$

素因数の和:472

約数の個数: 128

約数和(自身を含む): 87091200

約数和(自身を除く): 58670430

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 17, 19, 21, 30, 34, 35, 38, 42, 51, 57, 70, 85, 95, 102, 105, 114, 119, 133, 170, 190, 210, 238, 255, 266, 285, 323, 357, 399, 419, 510, 570, 595, 646, 665, 714, 798, 838, 969, 1190, 1257, 1330, 1615, 1785, 1938, 1995, 2095, 2261, 2514, 2933, 3230, 3570, 3990, 4190, 4522, 4845, 5866, 6285, 6783, 7123, 7961, 8799, 9690, 11305, 12570, 13566, 14246, 14665, 15922, 17598, 21369, 22610, 23883, 29330, 33915, 35615, 39805, 42738, 43995, 47766, 49861, 55727, 67830, 71230, 79610, 87990, 99722, 106845, 111454, 119415, 135337, 149583, 167181, 213690, 238830, 249305, 270674, 278635, 299166, 334362, 406011, 498610, 557270, 676685, 747915, 812022, 835905, 947359, 1353370, 1495830, 1671810, 1894718, 2030055, 2842077, 4060110, 4736795, 5684154, 9473590, 14210385, 28420770]

約数ペア:

[(1, 28420770), (2, 14210385), (3, 9473590), (5, 5684154), (6, 4736795), (7, 4060110), (10, 2842077), (14, 2030055), (15, 1894718), (17, 1671810), (19, 1495830), (21, 1353370), (30, 947359), (34, 835905), (35, 812022), (38, 747915), (42, 676685), (51, 557270), (57, 498610), (70, 406011), (85, 334362), (95, 299166), (102, 278635), (105, 270674), (114, 249305), (119, 238830), (133, 213690), (170, 167181), (190, 149583), (210, 135337), (238, 119415), (255, 111454), (266, 106845), (285, 99722), (323, 87990), (357, 79610), (399, 71230), (419, 67830), (510, 55727), (570, 49861), (595, 47766), (646, 43995), (665, 42738), (714, 39805), (798, 35615), (838, 33915), (969, 29330), (1190, 23883), (1257, 22610), (1330, 21369), (1615, 17598), (1785, 15922), (1938, 14665), (1995, 14246), (2095, 13566), (2261, 12570), (2514, 11305), (2933, 9690), (3230, 8799), (3570, 7961), (3990, 7123), (4190, 6783), (4522, 6285), (4845, 5866)]