20119781570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1\times {\mathrm{10391}}^1$

素因数の和:10743

約数の個数: 64

約数和(自身を含む): 41900544000

約数和(自身を除く): 21780762430

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 199, 278, 398, 695, 973, 995, 1390, 1393, 1946, 1990, 2786, 4865, 6965, 9730, 10391, 13930, 20782, 27661, 51955, 55322, 72737, 103910, 138305, 145474, 193627, 276610, 363685, 387254, 727370, 968135, 1444349, 1936270, 2067809, 2888698, 4135618, 7221745, 10110443, 10339045, 14443490, 14474663, 20220886, 20678090, 28949326, 50552215, 72373315, 101104430, 144746630, 287425451, 574850902, 1437127255, 2011978157, 2874254510, 4023956314, 10059890785, 20119781570]

約数ペア:

[(1, 20119781570), (2, 10059890785), (5, 4023956314), (7, 2874254510), (10, 2011978157), (14, 1437127255), (35, 574850902), (70, 287425451), (139, 144746630), (199, 101104430), (278, 72373315), (398, 50552215), (695, 28949326), (973, 20678090), (995, 20220886), (1390, 14474663), (1393, 14443490), (1946, 10339045), (1990, 10110443), (2786, 7221745), (4865, 4135618), (6965, 2888698), (9730, 2067809), (10391, 1936270), (13930, 1444349), (20782, 968135), (27661, 727370), (51955, 387254), (55322, 363685), (72737, 276610), (103910, 193627), (138305, 145474)]