28980920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:177

約数の個数: 96

約数和(自身を含む): 72943200

約数和(自身を除く): 43962280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 46, 68, 85, 92, 109, 115, 136, 170, 184, 218, 230, 289, 340, 391, 436, 460, 545, 578, 680, 782, 872, 920, 1090, 1156, 1445, 1564, 1853, 1955, 2180, 2312, 2507, 2890, 3128, 3706, 3910, 4360, 5014, 5780, 6647, 7412, 7820, 9265, 10028, 11560, 12535, 13294, 14824, 15640, 18530, 20056, 25070, 26588, 31501, 33235, 37060, 42619, 50140, 53176, 63002, 66470, 74120, 85238, 100280, 126004, 132940, 157505, 170476, 213095, 252008, 265880, 315010, 340952, 426190, 630020, 724523, 852380, 1260040, 1449046, 1704760, 2898092, 3622615, 5796184, 7245230, 14490460, 28980920]

約数ペア:

[(1, 28980920), (2, 14490460), (4, 7245230), (5, 5796184), (8, 3622615), (10, 2898092), (17, 1704760), (20, 1449046), (23, 1260040), (34, 852380), (40, 724523), (46, 630020), (68, 426190), (85, 340952), (92, 315010), (109, 265880), (115, 252008), (136, 213095), (170, 170476), (184, 157505), (218, 132940), (230, 126004), (289, 100280), (340, 85238), (391, 74120), (436, 66470), (460, 63002), (545, 53176), (578, 50140), (680, 42619), (782, 37060), (872, 33235), (920, 31501), (1090, 26588), (1156, 25070), (1445, 20056), (1564, 18530), (1853, 15640), (1955, 14824), (2180, 13294), (2312, 12535), (2507, 11560), (2890, 10028), (3128, 9265), (3706, 7820), (3910, 7412), (4360, 6647), (5014, 5780)]