15440920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1847}}^1$

素因数の和:1888

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 24475880

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 1847, 2090, 3694, 4180, 7388, 8360, 9235, 14776, 18470, 20317, 35093, 36940, 40634, 70186, 73880, 81268, 101585, 140372, 162536, 175465, 203170, 280744, 350930, 386023, 406340, 701860, 772046, 812680, 1403720, 1544092, 1930115, 3088184, 3860230, 7720460, 15440920]

約数ペア:

[(1, 15440920), (2, 7720460), (4, 3860230), (5, 3088184), (8, 1930115), (10, 1544092), (11, 1403720), (19, 812680), (20, 772046), (22, 701860), (38, 406340), (40, 386023), (44, 350930), (55, 280744), (76, 203170), (88, 175465), (95, 162536), (110, 140372), (152, 101585), (190, 81268), (209, 73880), (220, 70186), (380, 40634), (418, 36940), (440, 35093), (760, 20317), (836, 18470), (1045, 14776), (1672, 9235), (1847, 8360), (2090, 7388), (3694, 4180)]