85015640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 128

約数和(自身を含む): 216691200

約数和(自身を除く): 131675560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 37, 40, 62, 68, 74, 85, 109, 124, 136, 148, 155, 170, 185, 218, 248, 296, 310, 340, 370, 436, 527, 545, 620, 629, 680, 740, 872, 1054, 1090, 1147, 1240, 1258, 1480, 1853, 2108, 2180, 2294, 2516, 2635, 3145, 3379, 3706, 4033, 4216, 4360, 4588, 5032, 5270, 5735, 6290, 6758, 7412, 8066, 9176, 9265, 10540, 11470, 12580, 13516, 14824, 16132, 16895, 18530, 19499, 20165, 21080, 22940, 25160, 27032, 32264, 33790, 37060, 38998, 40330, 45880, 57443, 67580, 68561, 74120, 77996, 80660, 97495, 114886, 125023, 135160, 137122, 155992, 161320, 194990, 229772, 250046, 274244, 287215, 342805, 389980, 459544, 500092, 548488, 574430, 625115, 685610, 779960, 1000184, 1148860, 1250230, 1371220, 2125391, 2297720, 2500460, 2742440, 4250782, 5000920, 8501564, 10626955, 17003128, 21253910, 42507820, 85015640]

約数ペア:

[(1, 85015640), (2, 42507820), (4, 21253910), (5, 17003128), (8, 10626955), (10, 8501564), (17, 5000920), (20, 4250782), (31, 2742440), (34, 2500460), (37, 2297720), (40, 2125391), (62, 1371220), (68, 1250230), (74, 1148860), (85, 1000184), (109, 779960), (124, 685610), (136, 625115), (148, 574430), (155, 548488), (170, 500092), (185, 459544), (218, 389980), (248, 342805), (296, 287215), (310, 274244), (340, 250046), (370, 229772), (436, 194990), (527, 161320), (545, 155992), (620, 137122), (629, 135160), (680, 125023), (740, 114886), (872, 97495), (1054, 80660), (1090, 77996), (1147, 74120), (1240, 68561), (1258, 67580), (1480, 57443), (1853, 45880), (2108, 40330), (2180, 38998), (2294, 37060), (2516, 33790), (2635, 32264), (3145, 27032), (3379, 25160), (3706, 22940), (4033, 21080), (4216, 20165), (4360, 19499), (4588, 18530), (5032, 16895), (5270, 16132), (5735, 14824), (6290, 13516), (6758, 12580), (7412, 11470), (8066, 10540), (9176, 9265)]