287156720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1301}}^1$

素因数の和:1434

約数の個数: 80

約数和(自身を含む): 697455360

約数和(自身を除く): 410298640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 89, 124, 155, 178, 248, 310, 356, 445, 496, 620, 712, 890, 1240, 1301, 1424, 1780, 2480, 2602, 2759, 3560, 5204, 5518, 6505, 7120, 10408, 11036, 13010, 13795, 20816, 22072, 26020, 27590, 40331, 44144, 52040, 55180, 80662, 104080, 110360, 115789, 161324, 201655, 220720, 231578, 322648, 403310, 463156, 578945, 645296, 806620, 926312, 1157890, 1613240, 1852624, 2315780, 3226480, 3589459, 4631560, 7178918, 9263120, 14357836, 17947295, 28715672, 35894590, 57431344, 71789180, 143578360, 287156720]

約数ペア:

[(1, 287156720), (2, 143578360), (4, 71789180), (5, 57431344), (8, 35894590), (10, 28715672), (16, 17947295), (20, 14357836), (31, 9263120), (40, 7178918), (62, 4631560), (80, 3589459), (89, 3226480), (124, 2315780), (155, 1852624), (178, 1613240), (248, 1157890), (310, 926312), (356, 806620), (445, 645296), (496, 578945), (620, 463156), (712, 403310), (890, 322648), (1240, 231578), (1301, 220720), (1424, 201655), (1780, 161324), (2480, 115789), (2602, 110360), (2759, 104080), (3560, 80662), (5204, 55180), (5518, 52040), (6505, 44144), (7120, 40331), (10408, 27590), (11036, 26020), (13010, 22072), (13795, 20816)]