30821840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2393}}^1$

素因数の和:2436

約数の個数: 80

約数和(自身を含む): 85494528

約数和(自身を除く): 54672688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2393, 2576, 3220, 4786, 6440, 9572, 11965, 12880, 16751, 19144, 23930, 33502, 38288, 47860, 55039, 67004, 83755, 95720, 110078, 134008, 167510, 191440, 220156, 268016, 275195, 335020, 385273, 440312, 550390, 670040, 770546, 880624, 1100780, 1340080, 1541092, 1926365, 2201560, 3082184, 3852730, 4403120, 6164368, 7705460, 15410920, 30821840]

約数ペア:

[(1, 30821840), (2, 15410920), (4, 7705460), (5, 6164368), (7, 4403120), (8, 3852730), (10, 3082184), (14, 2201560), (16, 1926365), (20, 1541092), (23, 1340080), (28, 1100780), (35, 880624), (40, 770546), (46, 670040), (56, 550390), (70, 440312), (80, 385273), (92, 335020), (112, 275195), (115, 268016), (140, 220156), (161, 191440), (184, 167510), (230, 134008), (280, 110078), (322, 95720), (368, 83755), (460, 67004), (560, 55039), (644, 47860), (805, 38288), (920, 33502), (1288, 23930), (1610, 19144), (1840, 16751), (2393, 12880), (2576, 11965), (3220, 9572), (4786, 6440)]