28746720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19963}}^1$

素因数の和:19984

約数の個数: 72

約数和(自身を含む): 98103096

約数和(自身を除く): 69356376

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 19963, 39926, 59889, 79852, 99815, 119778, 159704, 179667, 199630, 239556, 299445, 319408, 359334, 399260, 479112, 598890, 638816, 718668, 798520, 898335, 958224, 1197780, 1437336, 1597040, 1796670, 1916448, 2395560, 2874672, 3194080, 3593340, 4791120, 5749344, 7186680, 9582240, 14373360, 28746720]

約数ペア:

[(1, 28746720), (2, 14373360), (3, 9582240), (4, 7186680), (5, 5749344), (6, 4791120), (8, 3593340), (9, 3194080), (10, 2874672), (12, 2395560), (15, 1916448), (16, 1796670), (18, 1597040), (20, 1437336), (24, 1197780), (30, 958224), (32, 898335), (36, 798520), (40, 718668), (45, 638816), (48, 598890), (60, 479112), (72, 399260), (80, 359334), (90, 319408), (96, 299445), (120, 239556), (144, 199630), (160, 179667), (180, 159704), (240, 119778), (288, 99815), (360, 79852), (480, 59889), (720, 39926), (1440, 19963)]