21104600

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 54840240

約数和(自身を除く): 33735640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 53, 55, 88, 100, 106, 110, 181, 200, 212, 220, 265, 275, 362, 424, 440, 530, 550, 583, 724, 905, 1060, 1100, 1166, 1325, 1448, 1810, 1991, 2120, 2200, 2332, 2650, 2915, 3620, 3982, 4525, 4664, 5300, 5830, 7240, 7964, 9050, 9593, 9955, 10600, 11660, 14575, 15928, 18100, 19186, 19910, 23320, 29150, 36200, 38372, 39820, 47965, 49775, 58300, 76744, 79640, 95930, 99550, 105523, 116600, 191860, 199100, 211046, 239825, 383720, 398200, 422092, 479650, 527615, 844184, 959300, 1055230, 1918600, 2110460, 2638075, 4220920, 5276150, 10552300, 21104600]

約数ペア:

[(1, 21104600), (2, 10552300), (4, 5276150), (5, 4220920), (8, 2638075), (10, 2110460), (11, 1918600), (20, 1055230), (22, 959300), (25, 844184), (40, 527615), (44, 479650), (50, 422092), (53, 398200), (55, 383720), (88, 239825), (100, 211046), (106, 199100), (110, 191860), (181, 116600), (200, 105523), (212, 99550), (220, 95930), (265, 79640), (275, 76744), (362, 58300), (424, 49775), (440, 47965), (530, 39820), (550, 38372), (583, 36200), (724, 29150), (905, 23320), (1060, 19910), (1100, 19186), (1166, 18100), (1325, 15928), (1448, 14575), (1810, 11660), (1991, 10600), (2120, 9955), (2200, 9593), (2332, 9050), (2650, 7964), (2915, 7240), (3620, 5830), (3982, 5300), (4525, 4664)]