1728931295

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{491}}^1$

素因数の和:696

約数の個数: 64

約数和(自身を含む): 2618542080

約数和(自身を除く): 889610785

約数列:

[1, 5, 7, 13, 35, 65, 71, 91, 109, 355, 455, 491, 497, 545, 763, 923, 1417, 2455, 2485, 3437, 3815, 4615, 6383, 6461, 7085, 7739, 9919, 17185, 31915, 32305, 34861, 38695, 44681, 49595, 53519, 54173, 100607, 174305, 223405, 244027, 267595, 270865, 374633, 453193, 503035, 695747, 704249, 1220135, 1873165, 2265965, 3172351, 3478735, 3521245, 3799849, 4870229, 15861755, 18999245, 24351145, 26598943, 49398037, 132994715, 246990185, 345786259, 1728931295]

約数ペア:

[(1, 1728931295), (5, 345786259), (7, 246990185), (13, 132994715), (35, 49398037), (65, 26598943), (71, 24351145), (91, 18999245), (109, 15861755), (355, 4870229), (455, 3799849), (491, 3521245), (497, 3478735), (545, 3172351), (763, 2265965), (923, 1873165), (1417, 1220135), (2455, 704249), (2485, 695747), (3437, 503035), (3815, 453193), (4615, 374633), (6383, 270865), (6461, 267595), (7085, 244027), (7739, 223405), (9919, 174305), (17185, 100607), (31915, 54173), (32305, 53519), (34861, 49595), (38695, 44681)]