4019900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{659}}^1$

素因数の和:734

約数の個数: 36

約数和(自身を含む): 8879640

約数和(自身を除く): 4859740

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 659, 1220, 1318, 1525, 2636, 3050, 3295, 6100, 6590, 13180, 16475, 32950, 40199, 65900, 80398, 160796, 200995, 401990, 803980, 1004975, 2009950, 4019900]

約数ペア:

[(1, 4019900), (2, 2009950), (4, 1004975), (5, 803980), (10, 401990), (20, 200995), (25, 160796), (50, 80398), (61, 65900), (100, 40199), (122, 32950), (244, 16475), (305, 13180), (610, 6590), (659, 6100), (1220, 3295), (1318, 3050), (1525, 2636)]