420199000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{32323}}^1$

素因数の和:32357

約数の個数: 64

約数和(自身を含む): 1058934240

約数和(自身を除く): 638735240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 650, 1000, 1300, 1625, 2600, 3250, 6500, 13000, 32323, 64646, 129292, 161615, 258584, 323230, 420199, 646460, 808075, 840398, 1292920, 1616150, 1680796, 2100995, 3232300, 3361592, 4040375, 4201990, 6464600, 8080750, 8403980, 10504975, 16161500, 16807960, 21009950, 32323000, 42019900, 52524875, 84039800, 105049750, 210099500, 420199000]

約数ペア:

[(1, 420199000), (2, 210099500), (4, 105049750), (5, 84039800), (8, 52524875), (10, 42019900), (13, 32323000), (20, 21009950), (25, 16807960), (26, 16161500), (40, 10504975), (50, 8403980), (52, 8080750), (65, 6464600), (100, 4201990), (104, 4040375), (125, 3361592), (130, 3232300), (200, 2100995), (250, 1680796), (260, 1616150), (325, 1292920), (500, 840398), (520, 808075), (650, 646460), (1000, 420199), (1300, 323230), (1625, 258584), (2600, 161615), (3250, 129292), (6500, 64646), (13000, 32323)]