21504320

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:160

約数の個数: 112

約数和(自身を含む): 55961280

約数和(自身を除く): 34456960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 59, 64, 67, 68, 80, 85, 118, 134, 136, 160, 170, 236, 268, 272, 295, 320, 335, 340, 472, 536, 544, 590, 670, 680, 944, 1003, 1072, 1088, 1139, 1180, 1340, 1360, 1888, 2006, 2144, 2278, 2360, 2680, 2720, 3776, 3953, 4012, 4288, 4556, 4720, 5015, 5360, 5440, 5695, 7906, 8024, 9112, 9440, 10030, 10720, 11390, 15812, 16048, 18224, 18880, 19765, 20060, 21440, 22780, 31624, 32096, 36448, 39530, 40120, 45560, 63248, 64192, 67201, 72896, 79060, 80240, 91120, 126496, 134402, 158120, 160480, 182240, 252992, 268804, 316240, 320960, 336005, 364480, 537608, 632480, 672010, 1075216, 1264960, 1344020, 2150432, 2688040, 4300864, 5376080, 10752160, 21504320]

約数ペア:

[(1, 21504320), (2, 10752160), (4, 5376080), (5, 4300864), (8, 2688040), (10, 2150432), (16, 1344020), (17, 1264960), (20, 1075216), (32, 672010), (34, 632480), (40, 537608), (59, 364480), (64, 336005), (67, 320960), (68, 316240), (80, 268804), (85, 252992), (118, 182240), (134, 160480), (136, 158120), (160, 134402), (170, 126496), (236, 91120), (268, 80240), (272, 79060), (295, 72896), (320, 67201), (335, 64192), (340, 63248), (472, 45560), (536, 40120), (544, 39530), (590, 36448), (670, 32096), (680, 31624), (944, 22780), (1003, 21440), (1072, 20060), (1088, 19765), (1139, 18880), (1180, 18224), (1340, 16048), (1360, 15812), (1888, 11390), (2006, 10720), (2144, 10030), (2278, 9440), (2360, 9112), (2680, 8024), (2720, 7906), (3776, 5695), (3953, 5440), (4012, 5360), (4288, 5015), (4556, 4720)]