320984460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{4447}}^1$

素因数の和:4863

約数の個数: 72

約数和(自身を含む): 976300416

約数和(自身を除く): 655315956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 401, 802, 1203, 1604, 2005, 2406, 3609, 4010, 4447, 4812, 6015, 7218, 8020, 8894, 12030, 13341, 14436, 17788, 18045, 22235, 24060, 26682, 36090, 40023, 44470, 53364, 66705, 72180, 80046, 88940, 133410, 160092, 200115, 266820, 400230, 800460, 1783247, 3566494, 5349741, 7132988, 8916235, 10699482, 16049223, 17832470, 21398964, 26748705, 32098446, 35664940, 53497410, 64196892, 80246115, 106994820, 160492230, 320984460]

約数ペア:

[(1, 320984460), (2, 160492230), (3, 106994820), (4, 80246115), (5, 64196892), (6, 53497410), (9, 35664940), (10, 32098446), (12, 26748705), (15, 21398964), (18, 17832470), (20, 16049223), (30, 10699482), (36, 8916235), (45, 7132988), (60, 5349741), (90, 3566494), (180, 1783247), (401, 800460), (802, 400230), (1203, 266820), (1604, 200115), (2005, 160092), (2406, 133410), (3609, 88940), (4010, 80046), (4447, 72180), (4812, 66705), (6015, 53364), (7218, 44470), (8020, 40023), (8894, 36090), (12030, 26682), (13341, 24060), (14436, 22235), (17788, 18045)]