20099500

素因数分解:

$2^2\times 5^3\times {\mathrm{61}}^1\times {\mathrm{659}}^1$

素因数の和:739

約数の個数: 48

約数和(自身を含む): 44684640

約数和(自身を除く): 24585140

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 125, 244, 250, 305, 500, 610, 659, 1220, 1318, 1525, 2636, 3050, 3295, 6100, 6590, 7625, 13180, 15250, 16475, 30500, 32950, 40199, 65900, 80398, 82375, 160796, 164750, 200995, 329500, 401990, 803980, 1004975, 2009950, 4019900, 5024875, 10049750, 20099500]

約数ペア:

[(1, 20099500), (2, 10049750), (4, 5024875), (5, 4019900), (10, 2009950), (20, 1004975), (25, 803980), (50, 401990), (61, 329500), (100, 200995), (122, 164750), (125, 160796), (244, 82375), (250, 80398), (305, 65900), (500, 40199), (610, 32950), (659, 30500), (1220, 16475), (1318, 15250), (1525, 13180), (2636, 7625), (3050, 6590), (3295, 6100)]