28690380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8389}}^1$

素因数の和:8423

約数の個数: 72

約数和(自身を含む): 91618800

約数和(自身を除く): 62928420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 8389, 16778, 25167, 33556, 41945, 50334, 75501, 83890, 100668, 125835, 151002, 159391, 167780, 251670, 302004, 318782, 377505, 478173, 503340, 637564, 755010, 796955, 956346, 1434519, 1510020, 1593910, 1912692, 2390865, 2869038, 3187820, 4781730, 5738076, 7172595, 9563460, 14345190, 28690380]

約数ペア:

[(1, 28690380), (2, 14345190), (3, 9563460), (4, 7172595), (5, 5738076), (6, 4781730), (9, 3187820), (10, 2869038), (12, 2390865), (15, 1912692), (18, 1593910), (19, 1510020), (20, 1434519), (30, 956346), (36, 796955), (38, 755010), (45, 637564), (57, 503340), (60, 478173), (76, 377505), (90, 318782), (95, 302004), (114, 251670), (171, 167780), (180, 159391), (190, 151002), (228, 125835), (285, 100668), (342, 83890), (380, 75501), (570, 50334), (684, 41945), (855, 33556), (1140, 25167), (1710, 16778), (3420, 8389)]