39950320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:314

約数の個数: 80

約数和(自身を含む): 97493760

約数和(自身を除く): 57543440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 89, 124, 155, 178, 181, 248, 310, 356, 362, 445, 496, 620, 712, 724, 890, 905, 1240, 1424, 1448, 1780, 1810, 2480, 2759, 2896, 3560, 3620, 5518, 5611, 7120, 7240, 11036, 11222, 13795, 14480, 16109, 22072, 22444, 27590, 28055, 32218, 44144, 44888, 55180, 56110, 64436, 80545, 89776, 110360, 112220, 128872, 161090, 220720, 224440, 257744, 322180, 448880, 499379, 644360, 998758, 1288720, 1997516, 2496895, 3995032, 4993790, 7990064, 9987580, 19975160, 39950320]

約数ペア:

[(1, 39950320), (2, 19975160), (4, 9987580), (5, 7990064), (8, 4993790), (10, 3995032), (16, 2496895), (20, 1997516), (31, 1288720), (40, 998758), (62, 644360), (80, 499379), (89, 448880), (124, 322180), (155, 257744), (178, 224440), (181, 220720), (248, 161090), (310, 128872), (356, 112220), (362, 110360), (445, 89776), (496, 80545), (620, 64436), (712, 56110), (724, 55180), (890, 44888), (905, 44144), (1240, 32218), (1424, 28055), (1448, 27590), (1780, 22444), (1810, 22072), (2480, 16109), (2759, 14480), (2896, 13795), (3560, 11222), (3620, 11036), (5518, 7240), (5611, 7120)]