207920325

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2753}}^1$

素因数の和:2838

約数の個数: 48

約数和(自身を含む): 368815680

約数和(自身を除く): 160895355

約数列:

[1, 3, 5, 15, 19, 25, 53, 57, 75, 95, 159, 265, 285, 475, 795, 1007, 1325, 1425, 2753, 3021, 3975, 5035, 8259, 13765, 15105, 25175, 41295, 52307, 68825, 75525, 145909, 156921, 206475, 261535, 437727, 729545, 784605, 1307675, 2188635, 2772271, 3647725, 3923025, 8316813, 10943175, 13861355, 41584065, 69306775, 207920325]

約数ペア:

[(1, 207920325), (3, 69306775), (5, 41584065), (15, 13861355), (19, 10943175), (25, 8316813), (53, 3923025), (57, 3647725), (75, 2772271), (95, 2188635), (159, 1307675), (265, 784605), (285, 729545), (475, 437727), (795, 261535), (1007, 206475), (1325, 156921), (1425, 145909), (2753, 75525), (3021, 68825), (3975, 52307), (5035, 41295), (8259, 25175), (13765, 15105)]