18964400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1$

素因数の和:559

約数の個数: 120

約数和(自身を含む): 56183904

約数和(自身を除く): 37219504

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 80, 91, 100, 104, 112, 130, 140, 175, 182, 200, 208, 260, 280, 325, 350, 364, 400, 455, 520, 521, 560, 650, 700, 728, 910, 1040, 1042, 1300, 1400, 1456, 1820, 2084, 2275, 2600, 2605, 2800, 3640, 3647, 4168, 4550, 5200, 5210, 6773, 7280, 7294, 8336, 9100, 10420, 13025, 13546, 14588, 18200, 18235, 20840, 26050, 27092, 29176, 33865, 36400, 36470, 41680, 47411, 52100, 54184, 58352, 67730, 72940, 91175, 94822, 104200, 108368, 135460, 145880, 169325, 182350, 189644, 208400, 237055, 270920, 291760, 338650, 364700, 379288, 474110, 541840, 677300, 729400, 758576, 948220, 1185275, 1354600, 1458800, 1896440, 2370550, 2709200, 3792880, 4741100, 9482200, 18964400]

約数ペア:

[(1, 18964400), (2, 9482200), (4, 4741100), (5, 3792880), (7, 2709200), (8, 2370550), (10, 1896440), (13, 1458800), (14, 1354600), (16, 1185275), (20, 948220), (25, 758576), (26, 729400), (28, 677300), (35, 541840), (40, 474110), (50, 379288), (52, 364700), (56, 338650), (65, 291760), (70, 270920), (80, 237055), (91, 208400), (100, 189644), (104, 182350), (112, 169325), (130, 145880), (140, 135460), (175, 108368), (182, 104200), (200, 94822), (208, 91175), (260, 72940), (280, 67730), (325, 58352), (350, 54184), (364, 52100), (400, 47411), (455, 41680), (520, 36470), (521, 36400), (560, 33865), (650, 29176), (700, 27092), (728, 26050), (910, 20840), (1040, 18235), (1042, 18200), (1300, 14588), (1400, 13546), (1456, 13025), (1820, 10420), (2084, 9100), (2275, 8336), (2600, 7294), (2605, 7280), (2800, 6773), (3640, 5210), (3647, 5200), (4168, 4550)]