8889409160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{659}}^1\times {\mathrm{17749}}^1$

素因数の和:18438

約数の個数: 64

約数和(自身を含む): 21087000000

約数和(自身を除く): 12197590840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 659, 760, 1318, 2636, 3295, 5272, 6590, 12521, 13180, 17749, 25042, 26360, 35498, 50084, 62605, 70996, 88745, 100168, 125210, 141992, 177490, 250420, 337231, 354980, 500840, 674462, 709960, 1348924, 1686155, 2697848, 3372310, 6744620, 11696591, 13489240, 23393182, 46786364, 58482955, 93572728, 116965910, 222235229, 233931820, 444470458, 467863640, 888940916, 1111176145, 1777881832, 2222352290, 4444704580, 8889409160]

約数ペア:

[(1, 8889409160), (2, 4444704580), (4, 2222352290), (5, 1777881832), (8, 1111176145), (10, 888940916), (19, 467863640), (20, 444470458), (38, 233931820), (40, 222235229), (76, 116965910), (95, 93572728), (152, 58482955), (190, 46786364), (380, 23393182), (659, 13489240), (760, 11696591), (1318, 6744620), (2636, 3372310), (3295, 2697848), (5272, 1686155), (6590, 1348924), (12521, 709960), (13180, 674462), (17749, 500840), (25042, 354980), (26360, 337231), (35498, 250420), (50084, 177490), (62605, 141992), (70996, 125210), (88745, 100168)]