163645100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2003}}^1$

素因数の和:2079

約数の個数: 72

約数和(自身を含む): 382683840

約数和(自身を除く): 219038740

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 43, 50, 76, 86, 95, 100, 172, 190, 215, 380, 430, 475, 817, 860, 950, 1075, 1634, 1900, 2003, 2150, 3268, 4006, 4085, 4300, 8012, 8170, 10015, 16340, 20030, 20425, 38057, 40060, 40850, 50075, 76114, 81700, 86129, 100150, 152228, 172258, 190285, 200300, 344516, 380570, 430645, 761140, 861290, 951425, 1636451, 1722580, 1902850, 2153225, 3272902, 3805700, 4306450, 6545804, 8182255, 8612900, 16364510, 32729020, 40911275, 81822550, 163645100]

約数ペア:

[(1, 163645100), (2, 81822550), (4, 40911275), (5, 32729020), (10, 16364510), (19, 8612900), (20, 8182255), (25, 6545804), (38, 4306450), (43, 3805700), (50, 3272902), (76, 2153225), (86, 1902850), (95, 1722580), (100, 1636451), (172, 951425), (190, 861290), (215, 761140), (380, 430645), (430, 380570), (475, 344516), (817, 200300), (860, 190285), (950, 172258), (1075, 152228), (1634, 100150), (1900, 86129), (2003, 81700), (2150, 76114), (3268, 50075), (4006, 40850), (4085, 40060), (4300, 38057), (8012, 20425), (8170, 20030), (10015, 16340)]