21935600

素因数分解:

$2^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:139

約数の個数: 120

約数和(自身を含む): 57198720

約数和(自身を除く): 35263120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 31, 40, 50, 58, 61, 62, 80, 100, 116, 122, 124, 145, 155, 200, 232, 244, 248, 290, 305, 310, 400, 464, 488, 496, 580, 610, 620, 725, 775, 899, 976, 1160, 1220, 1240, 1450, 1525, 1550, 1769, 1798, 1891, 2320, 2440, 2480, 2900, 3050, 3100, 3538, 3596, 3782, 4495, 4880, 5800, 6100, 6200, 7076, 7192, 7564, 8845, 8990, 9455, 11600, 12200, 12400, 14152, 14384, 15128, 17690, 17980, 18910, 22475, 24400, 28304, 30256, 35380, 35960, 37820, 44225, 44950, 47275, 54839, 70760, 71920, 75640, 88450, 89900, 94550, 109678, 141520, 151280, 176900, 179800, 189100, 219356, 274195, 353800, 359600, 378200, 438712, 548390, 707600, 756400, 877424, 1096780, 1370975, 2193560, 2741950, 4387120, 5483900, 10967800, 21935600]

約数ペア:

[(1, 21935600), (2, 10967800), (4, 5483900), (5, 4387120), (8, 2741950), (10, 2193560), (16, 1370975), (20, 1096780), (25, 877424), (29, 756400), (31, 707600), (40, 548390), (50, 438712), (58, 378200), (61, 359600), (62, 353800), (80, 274195), (100, 219356), (116, 189100), (122, 179800), (124, 176900), (145, 151280), (155, 141520), (200, 109678), (232, 94550), (244, 89900), (248, 88450), (290, 75640), (305, 71920), (310, 70760), (400, 54839), (464, 47275), (488, 44950), (496, 44225), (580, 37820), (610, 35960), (620, 35380), (725, 30256), (775, 28304), (899, 24400), (976, 22475), (1160, 18910), (1220, 17980), (1240, 17690), (1450, 15128), (1525, 14384), (1550, 14152), (1769, 12400), (1798, 12200), (1891, 11600), (2320, 9455), (2440, 8990), (2480, 8845), (2900, 7564), (3050, 7192), (3100, 7076), (3538, 6200), (3596, 6100), (3782, 5800), (4495, 4880)]