20197252010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{761}}^1\times {\mathrm{1873}}^1$

素因数の和:2763

約数の個数: 64

約数和(自身を含む): 39583827360

約数和(自身を除く): 19386575350

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 218, 545, 761, 1090, 1417, 1522, 1873, 2834, 3746, 3805, 7085, 7610, 9365, 9893, 14170, 18730, 19786, 24349, 48698, 49465, 82949, 98930, 121745, 165898, 204157, 243490, 408314, 414745, 829490, 1020785, 1078337, 1425353, 2041570, 2156674, 2654041, 2850706, 5308082, 5391685, 7126765, 10783370, 13270205, 14253530, 18529589, 26540410, 37059178, 92647945, 155363477, 185295890, 310726954, 776817385, 1553634770, 2019725201, 4039450402, 10098626005, 20197252010]

約数ペア:

[(1, 20197252010), (2, 10098626005), (5, 4039450402), (10, 2019725201), (13, 1553634770), (26, 776817385), (65, 310726954), (109, 185295890), (130, 155363477), (218, 92647945), (545, 37059178), (761, 26540410), (1090, 18529589), (1417, 14253530), (1522, 13270205), (1873, 10783370), (2834, 7126765), (3746, 5391685), (3805, 5308082), (7085, 2850706), (7610, 2654041), (9365, 2156674), (9893, 2041570), (14170, 1425353), (18730, 1078337), (19786, 1020785), (24349, 829490), (48698, 414745), (49465, 408314), (82949, 243490), (98930, 204157), (121745, 165898)]