161813520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20431}}^1$

素因数の和:20461

約数の個数: 120

約数和(自身を含む): 592854912

約数和(自身を除く): 431041392

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 3960, 7920, 20431, 40862, 61293, 81724, 102155, 122586, 163448, 183879, 204310, 224741, 245172, 306465, 326896, 367758, 408620, 449482, 490344, 612930, 674223, 735516, 817240, 898964, 919395, 980688, 1123705, 1225860, 1348446, 1471032, 1634480, 1797928, 1838790, 2022669, 2247410, 2451720, 2696892, 2942064, 3371115, 3595856, 3677580, 4045338, 4494820, 4903440, 5393784, 6742230, 7355160, 8090676, 8989640, 10113345, 10787568, 13484460, 14710320, 16181352, 17979280, 20226690, 26968920, 32362704, 40453380, 53937840, 80906760, 161813520]

約数ペア:

[(1, 161813520), (2, 80906760), (3, 53937840), (4, 40453380), (5, 32362704), (6, 26968920), (8, 20226690), (9, 17979280), (10, 16181352), (11, 14710320), (12, 13484460), (15, 10787568), (16, 10113345), (18, 8989640), (20, 8090676), (22, 7355160), (24, 6742230), (30, 5393784), (33, 4903440), (36, 4494820), (40, 4045338), (44, 3677580), (45, 3595856), (48, 3371115), (55, 2942064), (60, 2696892), (66, 2451720), (72, 2247410), (80, 2022669), (88, 1838790), (90, 1797928), (99, 1634480), (110, 1471032), (120, 1348446), (132, 1225860), (144, 1123705), (165, 980688), (176, 919395), (180, 898964), (198, 817240), (220, 735516), (240, 674223), (264, 612930), (330, 490344), (360, 449482), (396, 408620), (440, 367758), (495, 326896), (528, 306465), (660, 245172), (720, 224741), (792, 204310), (880, 183879), (990, 163448), (1320, 122586), (1584, 102155), (1980, 81724), (2640, 61293), (3960, 40862), (7920, 20431)]