20199131990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1\times {\mathrm{17183}}^1$

素因数の和:17501

約数の個数: 64

約数和(自身を含む): 40086835200

約数和(自身を除く): 19887703210

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 230, 269, 437, 538, 874, 1345, 2185, 2690, 4370, 5111, 6187, 10222, 12374, 17183, 25555, 30935, 34366, 51110, 61870, 85915, 117553, 171830, 235106, 326477, 395209, 587765, 652954, 790418, 1175530, 1632385, 1976045, 3264770, 3952090, 4622227, 7508971, 9244454, 15017942, 23111135, 37544855, 46222270, 75089710, 87822313, 106311221, 175644626, 212622442, 439111565, 531556105, 878223130, 1063112210, 2019913199, 4039826398, 10099565995, 20199131990]

約数ペア:

[(1, 20199131990), (2, 10099565995), (5, 4039826398), (10, 2019913199), (19, 1063112210), (23, 878223130), (38, 531556105), (46, 439111565), (95, 212622442), (115, 175644626), (190, 106311221), (230, 87822313), (269, 75089710), (437, 46222270), (538, 37544855), (874, 23111135), (1345, 15017942), (2185, 9244454), (2690, 7508971), (4370, 4622227), (5111, 3952090), (6187, 3264770), (10222, 1976045), (12374, 1632385), (17183, 1175530), (25555, 790418), (30935, 652954), (34366, 587765), (51110, 395209), (61870, 326477), (85915, 235106), (117553, 171830)]