18894240

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13121}}^1$

素因数の和:13142

約数の個数: 72

約数和(自身を含む): 64481508

約数和(自身を除く): 45587268

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, 13121, 26242, 39363, 52484, 65605, 78726, 104968, 118089, 131210, 157452, 196815, 209936, 236178, 262420, 314904, 393630, 419872, 472356, 524840, 590445, 629808, 787260, 944712, 1049680, 1180890, 1259616, 1574520, 1889424, 2099360, 2361780, 3149040, 3778848, 4723560, 6298080, 9447120, 18894240]

約数ペア:

[(1, 18894240), (2, 9447120), (3, 6298080), (4, 4723560), (5, 3778848), (6, 3149040), (8, 2361780), (9, 2099360), (10, 1889424), (12, 1574520), (15, 1259616), (16, 1180890), (18, 1049680), (20, 944712), (24, 787260), (30, 629808), (32, 590445), (36, 524840), (40, 472356), (45, 419872), (48, 393630), (60, 314904), (72, 262420), (80, 236178), (90, 209936), (96, 196815), (120, 157452), (144, 131210), (160, 118089), (180, 104968), (240, 78726), (288, 65605), (360, 52484), (480, 39363), (720, 26242), (1440, 13121)]