20567280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^2$

素因数の和:175

約数の個数: 120

約数和(自身を含む): 68473296

約数和(自身を除く): 47906016

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 71, 80, 85, 102, 120, 136, 142, 170, 204, 213, 240, 255, 272, 284, 340, 355, 408, 426, 510, 568, 680, 710, 816, 852, 1020, 1065, 1136, 1207, 1360, 1420, 1704, 2040, 2130, 2414, 2840, 3408, 3621, 4080, 4260, 4828, 5041, 5680, 6035, 7242, 8520, 9656, 10082, 12070, 14484, 15123, 17040, 18105, 19312, 20164, 24140, 25205, 28968, 30246, 36210, 40328, 48280, 50410, 57936, 60492, 72420, 75615, 80656, 85697, 96560, 100820, 120984, 144840, 151230, 171394, 201640, 241968, 257091, 289680, 302460, 342788, 403280, 428485, 514182, 604920, 685576, 856970, 1028364, 1209840, 1285455, 1371152, 1713940, 2056728, 2570910, 3427880, 4113456, 5141820, 6855760, 10283640, 20567280]

約数ペア:

[(1, 20567280), (2, 10283640), (3, 6855760), (4, 5141820), (5, 4113456), (6, 3427880), (8, 2570910), (10, 2056728), (12, 1713940), (15, 1371152), (16, 1285455), (17, 1209840), (20, 1028364), (24, 856970), (30, 685576), (34, 604920), (40, 514182), (48, 428485), (51, 403280), (60, 342788), (68, 302460), (71, 289680), (80, 257091), (85, 241968), (102, 201640), (120, 171394), (136, 151230), (142, 144840), (170, 120984), (204, 100820), (213, 96560), (240, 85697), (255, 80656), (272, 75615), (284, 72420), (340, 60492), (355, 57936), (408, 50410), (426, 48280), (510, 40328), (568, 36210), (680, 30246), (710, 28968), (816, 25205), (852, 24140), (1020, 20164), (1065, 19312), (1136, 18105), (1207, 17040), (1360, 15123), (1420, 14484), (1704, 12070), (2040, 10082), (2130, 9656), (2414, 8520), (2840, 7242), (3408, 6035), (3621, 5680), (4080, 5041), (4260, 4828)]