397257530

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 784963872

約数和(自身を除く): 387706342

約数列:

[1, 2, 5, 10, 17, 34, 37, 74, 85, 137, 170, 185, 274, 370, 461, 629, 685, 922, 1258, 1370, 2305, 2329, 3145, 4610, 4658, 5069, 6290, 7837, 10138, 11645, 15674, 17057, 23290, 25345, 34114, 39185, 50690, 63157, 78370, 85285, 86173, 126314, 170570, 172346, 289969, 315785, 430865, 579938, 631570, 861730, 1073669, 1449845, 2147338, 2336809, 2899690, 4673618, 5368345, 10736690, 11684045, 23368090, 39725753, 79451506, 198628765, 397257530]

約数ペア:

[(1, 397257530), (2, 198628765), (5, 79451506), (10, 39725753), (17, 23368090), (34, 11684045), (37, 10736690), (74, 5368345), (85, 4673618), (137, 2899690), (170, 2336809), (185, 2147338), (274, 1449845), (370, 1073669), (461, 861730), (629, 631570), (685, 579938), (922, 430865), (1258, 315785), (1370, 289969), (2305, 172346), (2329, 170570), (3145, 126314), (4610, 86173), (4658, 85285), (5069, 78370), (6290, 63157), (7837, 50690), (10138, 39185), (11645, 34114), (15674, 25345), (17057, 23290)]