2021840840

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{439}}^1\times {\mathrm{1187}}^1$

素因数の和:1734

約数の個数: 64

約数和(自身を含む): 4610390400

約数和(自身を除く): 2588549560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 439, 485, 776, 878, 970, 1187, 1756, 1940, 2195, 2374, 3512, 3880, 4390, 4748, 5935, 8780, 9496, 11870, 17560, 23740, 42583, 47480, 85166, 115139, 170332, 212915, 230278, 340664, 425830, 460556, 521093, 575695, 851660, 921112, 1042186, 1151390, 1703320, 2084372, 2302780, 2605465, 4168744, 4605560, 5210930, 10421860, 20843720, 50546021, 101092042, 202184084, 252730105, 404368168, 505460210, 1010920420, 2021840840]

約数ペア:

[(1, 2021840840), (2, 1010920420), (4, 505460210), (5, 404368168), (8, 252730105), (10, 202184084), (20, 101092042), (40, 50546021), (97, 20843720), (194, 10421860), (388, 5210930), (439, 4605560), (485, 4168744), (776, 2605465), (878, 2302780), (970, 2084372), (1187, 1703320), (1756, 1151390), (1940, 1042186), (2195, 921112), (2374, 851660), (3512, 575695), (3880, 521093), (4390, 460556), (4748, 425830), (5935, 340664), (8780, 230278), (9496, 212915), (11870, 170332), (17560, 115139), (23740, 85166), (42583, 47480)]