289445620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{4673}}^1$

素因数の和:4864

約数の個数: 48

約数和(自身を含む): 643890240

約数和(自身を除く): 354444620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 163, 190, 326, 380, 652, 815, 1630, 3097, 3260, 4673, 6194, 9346, 12388, 15485, 18692, 23365, 30970, 46730, 61940, 88787, 93460, 177574, 355148, 443935, 761699, 887870, 1523398, 1775740, 3046796, 3808495, 7616990, 14472281, 15233980, 28944562, 57889124, 72361405, 144722810, 289445620]

約数ペア:

[(1, 289445620), (2, 144722810), (4, 72361405), (5, 57889124), (10, 28944562), (19, 15233980), (20, 14472281), (38, 7616990), (76, 3808495), (95, 3046796), (163, 1775740), (190, 1523398), (326, 887870), (380, 761699), (652, 443935), (815, 355148), (1630, 177574), (3097, 93460), (3260, 88787), (4673, 61940), (6194, 46730), (9346, 30970), (12388, 23365), (15485, 18692)]