198419840

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:260

約数の個数: 128

約数和(自身を含む): 499979520

約数和(自身を除く): 301559680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 73, 80, 124, 128, 137, 146, 155, 160, 248, 274, 292, 310, 320, 365, 496, 548, 584, 620, 640, 685, 730, 992, 1096, 1168, 1240, 1370, 1460, 1984, 2192, 2263, 2336, 2480, 2740, 2920, 3968, 4247, 4384, 4526, 4672, 4960, 5480, 5840, 8494, 8768, 9052, 9344, 9920, 10001, 10960, 11315, 11680, 16988, 17536, 18104, 19840, 20002, 21235, 21920, 22630, 23360, 33976, 36208, 40004, 42470, 43840, 45260, 46720, 50005, 67952, 72416, 80008, 84940, 87680, 90520, 100010, 135904, 144832, 160016, 169880, 181040, 200020, 271808, 289664, 310031, 320032, 339760, 362080, 400040, 543616, 620062, 640064, 679520, 724160, 800080, 1240124, 1280128, 1359040, 1448320, 1550155, 1600160, 2480248, 2718080, 3100310, 3200320, 4960496, 6200620, 6400640, 9920992, 12401240, 19841984, 24802480, 39683968, 49604960, 99209920, 198419840]

約数ペア:

[(1, 198419840), (2, 99209920), (4, 49604960), (5, 39683968), (8, 24802480), (10, 19841984), (16, 12401240), (20, 9920992), (31, 6400640), (32, 6200620), (40, 4960496), (62, 3200320), (64, 3100310), (73, 2718080), (80, 2480248), (124, 1600160), (128, 1550155), (137, 1448320), (146, 1359040), (155, 1280128), (160, 1240124), (248, 800080), (274, 724160), (292, 679520), (310, 640064), (320, 620062), (365, 543616), (496, 400040), (548, 362080), (584, 339760), (620, 320032), (640, 310031), (685, 289664), (730, 271808), (992, 200020), (1096, 181040), (1168, 169880), (1240, 160016), (1370, 144832), (1460, 135904), (1984, 100010), (2192, 90520), (2263, 87680), (2336, 84940), (2480, 80008), (2740, 72416), (2920, 67952), (3968, 50005), (4247, 46720), (4384, 45260), (4526, 43840), (4672, 42470), (4960, 40004), (5480, 36208), (5840, 33976), (8494, 23360), (8768, 22630), (9052, 21920), (9344, 21235), (9920, 20002), (10001, 19840), (10960, 18104), (11315, 17536), (11680, 16988)]