28001440

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:246

約数の個数: 96

約数和(自身を含む): 71245440

約数和(自身を除く): 43244000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 61, 76, 80, 95, 122, 151, 152, 160, 190, 244, 302, 304, 305, 380, 488, 604, 608, 610, 755, 760, 976, 1159, 1208, 1220, 1510, 1520, 1952, 2318, 2416, 2440, 2869, 3020, 3040, 4636, 4832, 4880, 5738, 5795, 6040, 9211, 9272, 9760, 11476, 11590, 12080, 14345, 18422, 18544, 22952, 23180, 24160, 28690, 36844, 37088, 45904, 46055, 46360, 57380, 73688, 91808, 92110, 92720, 114760, 147376, 175009, 184220, 185440, 229520, 294752, 350018, 368440, 459040, 700036, 736880, 875045, 1400072, 1473760, 1750090, 2800144, 3500180, 5600288, 7000360, 14000720, 28001440]

約数ペア:

[(1, 28001440), (2, 14000720), (4, 7000360), (5, 5600288), (8, 3500180), (10, 2800144), (16, 1750090), (19, 1473760), (20, 1400072), (32, 875045), (38, 736880), (40, 700036), (61, 459040), (76, 368440), (80, 350018), (95, 294752), (122, 229520), (151, 185440), (152, 184220), (160, 175009), (190, 147376), (244, 114760), (302, 92720), (304, 92110), (305, 91808), (380, 73688), (488, 57380), (604, 46360), (608, 46055), (610, 45904), (755, 37088), (760, 36844), (976, 28690), (1159, 24160), (1208, 23180), (1220, 22952), (1510, 18544), (1520, 18422), (1952, 14345), (2318, 12080), (2416, 11590), (2440, 11476), (2869, 9760), (3020, 9272), (3040, 9211), (4636, 6040), (4832, 5795), (4880, 5738)]