80977275

素因数分解:

$3^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 152159904

約数和(自身を除く): 71182629

約数列:

[1, 3, 5, 9, 15, 25, 37, 45, 71, 75, 111, 137, 185, 213, 225, 333, 355, 411, 555, 639, 685, 925, 1065, 1233, 1665, 1775, 2055, 2627, 2775, 3195, 3425, 5069, 5325, 6165, 7881, 8325, 9727, 10275, 13135, 15207, 15975, 23643, 25345, 29181, 30825, 39405, 45621, 48635, 65675, 76035, 87543, 118215, 126725, 145905, 197025, 228105, 243175, 359899, 380175, 437715, 591075, 729525, 1079697, 1140525, 1799495, 2188575, 3239091, 5398485, 8997475, 16195455, 26992425, 80977275]

約数ペア:

[(1, 80977275), (3, 26992425), (5, 16195455), (9, 8997475), (15, 5398485), (25, 3239091), (37, 2188575), (45, 1799495), (71, 1140525), (75, 1079697), (111, 729525), (137, 591075), (185, 437715), (213, 380175), (225, 359899), (333, 243175), (355, 228105), (411, 197025), (555, 145905), (639, 126725), (685, 118215), (925, 87543), (1065, 76035), (1233, 65675), (1665, 48635), (1775, 45621), (2055, 39405), (2627, 30825), (2775, 29181), (3195, 25345), (3425, 23643), (5069, 15975), (5325, 15207), (6165, 13135), (7881, 10275), (8325, 9727)]