21246480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1283}}^1$

素因数の和:1325

約数の個数: 120

約数和(自身を含む): 74513088

約数和(自身を除く): 53266608

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1283, 1380, 1656, 1840, 2070, 2566, 2760, 3312, 3849, 4140, 5132, 5520, 6415, 7698, 8280, 10264, 11547, 12830, 15396, 16560, 19245, 20528, 23094, 25660, 29509, 30792, 38490, 46188, 51320, 57735, 59018, 61584, 76980, 88527, 92376, 102640, 115470, 118036, 147545, 153960, 177054, 184752, 230940, 236072, 265581, 295090, 307920, 354108, 442635, 461880, 472144, 531162, 590180, 708216, 885270, 923760, 1062324, 1180360, 1327905, 1416432, 1770540, 2124648, 2360720, 2655810, 3541080, 4249296, 5311620, 7082160, 10623240, 21246480]

約数ペア:

[(1, 21246480), (2, 10623240), (3, 7082160), (4, 5311620), (5, 4249296), (6, 3541080), (8, 2655810), (9, 2360720), (10, 2124648), (12, 1770540), (15, 1416432), (16, 1327905), (18, 1180360), (20, 1062324), (23, 923760), (24, 885270), (30, 708216), (36, 590180), (40, 531162), (45, 472144), (46, 461880), (48, 442635), (60, 354108), (69, 307920), (72, 295090), (80, 265581), (90, 236072), (92, 230940), (115, 184752), (120, 177054), (138, 153960), (144, 147545), (180, 118036), (184, 115470), (207, 102640), (230, 92376), (240, 88527), (276, 76980), (345, 61584), (360, 59018), (368, 57735), (414, 51320), (460, 46188), (552, 38490), (690, 30792), (720, 29509), (828, 25660), (920, 23094), (1035, 20528), (1104, 19245), (1283, 16560), (1380, 15396), (1656, 12830), (1840, 11547), (2070, 10264), (2566, 8280), (2760, 7698), (3312, 6415), (3849, 5520), (4140, 5132)]