399901080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{25439}}^1$

素因数の和:25584

約数の個数: 64

約数和(自身を含む): 1208908800

約数和(自身を除く): 809007720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1965, 2620, 3144, 3930, 5240, 7860, 15720, 25439, 50878, 76317, 101756, 127195, 152634, 203512, 254390, 305268, 381585, 508780, 610536, 763170, 1017560, 1526340, 3052680, 3332509, 6665018, 9997527, 13330036, 16662545, 19995054, 26660072, 33325090, 39990108, 49987635, 66650180, 79980216, 99975270, 133300360, 199950540, 399901080]

約数ペア:

[(1, 399901080), (2, 199950540), (3, 133300360), (4, 99975270), (5, 79980216), (6, 66650180), (8, 49987635), (10, 39990108), (12, 33325090), (15, 26660072), (20, 19995054), (24, 16662545), (30, 13330036), (40, 9997527), (60, 6665018), (120, 3332509), (131, 3052680), (262, 1526340), (393, 1017560), (524, 763170), (655, 610536), (786, 508780), (1048, 381585), (1310, 305268), (1572, 254390), (1965, 203512), (2620, 152634), (3144, 127195), (3930, 101756), (5240, 76317), (7860, 50878), (15720, 25439)]