1640220160

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:448

約数の個数: 160

約数和(自身を含む): 4163037120

約数和(自身を除く): 2522816960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 89, 92, 115, 128, 160, 178, 184, 230, 256, 313, 320, 356, 368, 445, 460, 512, 626, 640, 712, 736, 890, 920, 1252, 1280, 1424, 1472, 1565, 1780, 1840, 2047, 2504, 2560, 2848, 2944, 3130, 3560, 3680, 4094, 5008, 5696, 5888, 6260, 7120, 7199, 7360, 8188, 10016, 10235, 11392, 11776, 12520, 14240, 14398, 14720, 16376, 20032, 20470, 22784, 25040, 27857, 28480, 28796, 29440, 32752, 35995, 40064, 40940, 45568, 50080, 55714, 56960, 57592, 58880, 65504, 71990, 80128, 81880, 100160, 111428, 113920, 115184, 131008, 139285, 143980, 160256, 163760, 200320, 222856, 227840, 230368, 262016, 278570, 287960, 327520, 400640, 445712, 460736, 524032, 557140, 575920, 640711, 655040, 801280, 891424, 921472, 1048064, 1114280, 1151840, 1281422, 1310080, 1782848, 1842944, 2228560, 2303680, 2562844, 2620160, 3203555, 3565696, 3685888, 4457120, 4607360, 5125688, 5240320, 6407110, 7131392, 8914240, 9214720, 10251376, 12814220, 14262784, 17828480, 18429440, 20502752, 25628440, 35656960, 41005504, 51256880, 71313920, 82011008, 102513760, 164022016, 205027520, 328044032, 410055040, 820110080, 1640220160]

約数ペア:

[(1, 1640220160), (2, 820110080), (4, 410055040), (5, 328044032), (8, 205027520), (10, 164022016), (16, 102513760), (20, 82011008), (23, 71313920), (32, 51256880), (40, 41005504), (46, 35656960), (64, 25628440), (80, 20502752), (89, 18429440), (92, 17828480), (115, 14262784), (128, 12814220), (160, 10251376), (178, 9214720), (184, 8914240), (230, 7131392), (256, 6407110), (313, 5240320), (320, 5125688), (356, 4607360), (368, 4457120), (445, 3685888), (460, 3565696), (512, 3203555), (626, 2620160), (640, 2562844), (712, 2303680), (736, 2228560), (890, 1842944), (920, 1782848), (1252, 1310080), (1280, 1281422), (1424, 1151840), (1472, 1114280), (1565, 1048064), (1780, 921472), (1840, 891424), (2047, 801280), (2504, 655040), (2560, 640711), (2848, 575920), (2944, 557140), (3130, 524032), (3560, 460736), (3680, 445712), (4094, 400640), (5008, 327520), (5696, 287960), (5888, 278570), (6260, 262016), (7120, 230368), (7199, 227840), (7360, 222856), (8188, 200320), (10016, 163760), (10235, 160256), (11392, 143980), (11776, 139285), (12520, 131008), (14240, 115184), (14398, 113920), (14720, 111428), (16376, 100160), (20032, 81880), (20470, 80128), (22784, 71990), (25040, 65504), (27857, 58880), (28480, 57592), (28796, 56960), (29440, 55714), (32752, 50080), (35995, 45568), (40064, 40940)]