89967720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{881}}^1$

素因数の和:955

約数の個数: 128

約数和(自身を含む): 289578240

約数和(自身を除く): 199610520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 37, 40, 46, 60, 69, 74, 92, 111, 115, 120, 138, 148, 184, 185, 222, 230, 276, 296, 345, 370, 444, 460, 552, 555, 690, 740, 851, 881, 888, 920, 1110, 1380, 1480, 1702, 1762, 2220, 2553, 2643, 2760, 3404, 3524, 4255, 4405, 4440, 5106, 5286, 6808, 7048, 8510, 8810, 10212, 10572, 12765, 13215, 17020, 17620, 20263, 20424, 21144, 25530, 26430, 32597, 34040, 35240, 40526, 51060, 52860, 60789, 65194, 81052, 97791, 101315, 102120, 105720, 121578, 130388, 162104, 162985, 195582, 202630, 243156, 260776, 303945, 325970, 391164, 405260, 486312, 488955, 607890, 651940, 749731, 782328, 810520, 977910, 1215780, 1303880, 1499462, 1955820, 2249193, 2431560, 2998924, 3748655, 3911640, 4498386, 5997848, 7497310, 8996772, 11245965, 14994620, 17993544, 22491930, 29989240, 44983860, 89967720]

約数ペア:

[(1, 89967720), (2, 44983860), (3, 29989240), (4, 22491930), (5, 17993544), (6, 14994620), (8, 11245965), (10, 8996772), (12, 7497310), (15, 5997848), (20, 4498386), (23, 3911640), (24, 3748655), (30, 2998924), (37, 2431560), (40, 2249193), (46, 1955820), (60, 1499462), (69, 1303880), (74, 1215780), (92, 977910), (111, 810520), (115, 782328), (120, 749731), (138, 651940), (148, 607890), (184, 488955), (185, 486312), (222, 405260), (230, 391164), (276, 325970), (296, 303945), (345, 260776), (370, 243156), (444, 202630), (460, 195582), (552, 162985), (555, 162104), (690, 130388), (740, 121578), (851, 105720), (881, 102120), (888, 101315), (920, 97791), (1110, 81052), (1380, 65194), (1480, 60789), (1702, 52860), (1762, 51060), (2220, 40526), (2553, 35240), (2643, 34040), (2760, 32597), (3404, 26430), (3524, 25530), (4255, 21144), (4405, 20424), (4440, 20263), (5106, 17620), (5286, 17020), (6808, 13215), (7048, 12765), (8510, 10572), (8810, 10212)]