80678720

素因数分解:

$2^6\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:208

約数の個数: 112

約数和(自身を含む): 201460608

約数和(自身を除く): 120781888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 67, 71, 80, 106, 134, 142, 160, 212, 265, 268, 284, 320, 335, 355, 424, 530, 536, 568, 670, 710, 848, 1060, 1072, 1136, 1340, 1420, 1696, 2120, 2144, 2272, 2680, 2840, 3392, 3551, 3763, 4240, 4288, 4544, 4757, 5360, 5680, 7102, 7526, 8480, 9514, 10720, 11360, 14204, 15052, 16960, 17755, 18815, 19028, 21440, 22720, 23785, 28408, 30104, 35510, 37630, 38056, 47570, 56816, 60208, 71020, 75260, 76112, 95140, 113632, 120416, 142040, 150520, 152224, 190280, 227264, 240832, 252121, 284080, 301040, 304448, 380560, 504242, 568160, 602080, 761120, 1008484, 1136320, 1204160, 1260605, 1522240, 2016968, 2521210, 4033936, 5042420, 8067872, 10084840, 16135744, 20169680, 40339360, 80678720]

約数ペア:

[(1, 80678720), (2, 40339360), (4, 20169680), (5, 16135744), (8, 10084840), (10, 8067872), (16, 5042420), (20, 4033936), (32, 2521210), (40, 2016968), (53, 1522240), (64, 1260605), (67, 1204160), (71, 1136320), (80, 1008484), (106, 761120), (134, 602080), (142, 568160), (160, 504242), (212, 380560), (265, 304448), (268, 301040), (284, 284080), (320, 252121), (335, 240832), (355, 227264), (424, 190280), (530, 152224), (536, 150520), (568, 142040), (670, 120416), (710, 113632), (848, 95140), (1060, 76112), (1072, 75260), (1136, 71020), (1340, 60208), (1420, 56816), (1696, 47570), (2120, 38056), (2144, 37630), (2272, 35510), (2680, 30104), (2840, 28408), (3392, 23785), (3551, 22720), (3763, 21440), (4240, 19028), (4288, 18815), (4544, 17755), (4757, 16960), (5360, 15052), (5680, 14204), (7102, 11360), (7526, 10720), (8480, 9514)]