172051240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1559}}^1$

素因数の和:1690

約数の個数: 64

約数和(自身を含む): 404352000

約数和(自身を除く): 232300760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 89, 124, 155, 178, 248, 310, 356, 445, 620, 712, 890, 1240, 1559, 1780, 2759, 3118, 3560, 5518, 6236, 7795, 11036, 12472, 13795, 15590, 22072, 27590, 31180, 48329, 55180, 62360, 96658, 110360, 138751, 193316, 241645, 277502, 386632, 483290, 555004, 693755, 966580, 1110008, 1387510, 1933160, 2775020, 4301281, 5550040, 8602562, 17205124, 21506405, 34410248, 43012810, 86025620, 172051240]

約数ペア:

[(1, 172051240), (2, 86025620), (4, 43012810), (5, 34410248), (8, 21506405), (10, 17205124), (20, 8602562), (31, 5550040), (40, 4301281), (62, 2775020), (89, 1933160), (124, 1387510), (155, 1110008), (178, 966580), (248, 693755), (310, 555004), (356, 483290), (445, 386632), (620, 277502), (712, 241645), (890, 193316), (1240, 138751), (1559, 110360), (1780, 96658), (2759, 62360), (3118, 55180), (3560, 48329), (5518, 31180), (6236, 27590), (7795, 22072), (11036, 15590), (12472, 13795)]