3973515

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 64

約数和(自身を含む): 8128512

約数和(自身を除く): 4154997

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 41, 65, 71, 91, 105, 123, 195, 205, 213, 273, 287, 355, 455, 497, 533, 615, 861, 923, 1065, 1365, 1435, 1491, 1599, 2485, 2665, 2769, 2911, 3731, 4305, 4615, 6461, 7455, 7995, 8733, 11193, 13845, 14555, 18655, 19383, 20377, 32305, 37843, 43665, 55965, 61131, 96915, 101885, 113529, 189215, 264901, 305655, 567645, 794703, 1324505, 3973515]

約数ペア:

[(1, 3973515), (3, 1324505), (5, 794703), (7, 567645), (13, 305655), (15, 264901), (21, 189215), (35, 113529), (39, 101885), (41, 96915), (65, 61131), (71, 55965), (91, 43665), (105, 37843), (123, 32305), (195, 20377), (205, 19383), (213, 18655), (273, 14555), (287, 13845), (355, 11193), (455, 8733), (497, 7995), (533, 7455), (615, 6461), (861, 4615), (923, 4305), (1065, 3731), (1365, 2911), (1435, 2769), (1491, 2665), (1599, 2485)]