80854720

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:290

約数の個数: 112

約数和(自身を含む): 207385920

約数和(自身を除く): 126531200

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 89, 136, 160, 167, 170, 178, 272, 320, 334, 340, 356, 445, 544, 668, 680, 712, 835, 890, 1088, 1336, 1360, 1424, 1513, 1670, 1780, 2672, 2720, 2839, 2848, 3026, 3340, 3560, 5344, 5440, 5678, 5696, 6052, 6680, 7120, 7565, 10688, 11356, 12104, 13360, 14195, 14240, 14863, 15130, 22712, 24208, 26720, 28390, 28480, 29726, 30260, 45424, 48416, 53440, 56780, 59452, 60520, 74315, 90848, 96832, 113560, 118904, 121040, 148630, 181696, 227120, 237808, 242080, 252671, 297260, 454240, 475616, 484160, 505342, 594520, 908480, 951232, 1010684, 1189040, 1263355, 2021368, 2378080, 2526710, 4042736, 4756160, 5053420, 8085472, 10106840, 16170944, 20213680, 40427360, 80854720]

約数ペア:

[(1, 80854720), (2, 40427360), (4, 20213680), (5, 16170944), (8, 10106840), (10, 8085472), (16, 5053420), (17, 4756160), (20, 4042736), (32, 2526710), (34, 2378080), (40, 2021368), (64, 1263355), (68, 1189040), (80, 1010684), (85, 951232), (89, 908480), (136, 594520), (160, 505342), (167, 484160), (170, 475616), (178, 454240), (272, 297260), (320, 252671), (334, 242080), (340, 237808), (356, 227120), (445, 181696), (544, 148630), (668, 121040), (680, 118904), (712, 113560), (835, 96832), (890, 90848), (1088, 74315), (1336, 60520), (1360, 59452), (1424, 56780), (1513, 53440), (1670, 48416), (1780, 45424), (2672, 30260), (2720, 29726), (2839, 28480), (2848, 28390), (3026, 26720), (3340, 24208), (3560, 22712), (5344, 15130), (5440, 14863), (5678, 14240), (5696, 14195), (6052, 13360), (6680, 12104), (7120, 11356), (7565, 10688)]