39898880

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 112534464

約数和(自身を除く): 72635584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 64, 70, 73, 80, 112, 122, 128, 140, 146, 160, 224, 244, 256, 280, 292, 305, 320, 365, 427, 448, 488, 511, 560, 584, 610, 640, 730, 854, 896, 976, 1022, 1120, 1168, 1220, 1280, 1460, 1708, 1792, 1952, 2044, 2135, 2240, 2336, 2440, 2555, 2920, 3416, 3904, 4088, 4270, 4453, 4480, 4672, 4880, 5110, 5840, 6832, 7808, 8176, 8540, 8906, 8960, 9344, 9760, 10220, 11680, 13664, 15616, 16352, 17080, 17812, 18688, 19520, 20440, 22265, 23360, 27328, 31171, 32704, 34160, 35624, 39040, 40880, 44530, 46720, 54656, 62342, 65408, 68320, 71248, 78080, 81760, 89060, 93440, 109312, 124684, 130816, 136640, 142496, 155855, 163520, 178120, 249368, 273280, 284992, 311710, 327040, 356240, 498736, 546560, 569984, 623420, 654080, 712480, 997472, 1139968, 1246840, 1424960, 1994944, 2493680, 2849920, 3989888, 4987360, 5699840, 7979776, 9974720, 19949440, 39898880]

約数ペア:

[(1, 39898880), (2, 19949440), (4, 9974720), (5, 7979776), (7, 5699840), (8, 4987360), (10, 3989888), (14, 2849920), (16, 2493680), (20, 1994944), (28, 1424960), (32, 1246840), (35, 1139968), (40, 997472), (56, 712480), (61, 654080), (64, 623420), (70, 569984), (73, 546560), (80, 498736), (112, 356240), (122, 327040), (128, 311710), (140, 284992), (146, 273280), (160, 249368), (224, 178120), (244, 163520), (256, 155855), (280, 142496), (292, 136640), (305, 130816), (320, 124684), (365, 109312), (427, 93440), (448, 89060), (488, 81760), (511, 78080), (560, 71248), (584, 68320), (610, 65408), (640, 62342), (730, 54656), (854, 46720), (896, 44530), (976, 40880), (1022, 39040), (1120, 35624), (1168, 34160), (1220, 32704), (1280, 31171), (1460, 27328), (1708, 23360), (1792, 22265), (1952, 20440), (2044, 19520), (2135, 18688), (2240, 17812), (2336, 17080), (2440, 16352), (2555, 15616), (2920, 13664), (3416, 11680), (3904, 10220), (4088, 9760), (4270, 9344), (4453, 8960), (4480, 8906), (4672, 8540), (4880, 8176), (5110, 7808), (5840, 6832)]