249956720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7753}}^1$

素因数の和:7810

約数の個数: 80

約数和(自身を含む): 646125312

約数和(自身を除く): 396168592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 7753, 8060, 15506, 16120, 31012, 32240, 38765, 62024, 77530, 100789, 124048, 155060, 201578, 240343, 310120, 403156, 480686, 503945, 620240, 806312, 961372, 1007890, 1201715, 1612624, 1922744, 2015780, 2403430, 3124459, 3845488, 4031560, 4806860, 6248918, 8063120, 9613720, 12497836, 15622295, 19227440, 24995672, 31244590, 49991344, 62489180, 124978360, 249956720]

約数ペア:

[(1, 249956720), (2, 124978360), (4, 62489180), (5, 49991344), (8, 31244590), (10, 24995672), (13, 19227440), (16, 15622295), (20, 12497836), (26, 9613720), (31, 8063120), (40, 6248918), (52, 4806860), (62, 4031560), (65, 3845488), (80, 3124459), (104, 2403430), (124, 2015780), (130, 1922744), (155, 1612624), (208, 1201715), (248, 1007890), (260, 961372), (310, 806312), (403, 620240), (496, 503945), (520, 480686), (620, 403156), (806, 310120), (1040, 240343), (1240, 201578), (1612, 155060), (2015, 124048), (2480, 100789), (3224, 77530), (4030, 62024), (6448, 38765), (7753, 32240), (8060, 31012), (15506, 16120)]