431149420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1\times {\mathrm{641}}^1$

素因数の和:875

約数の個数: 72

約数和(自身を含む): 986882400

約数和(自身を除く): 555732980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 199, 260, 338, 398, 641, 676, 796, 845, 995, 1282, 1690, 1990, 2564, 2587, 3205, 3380, 3980, 5174, 6410, 8333, 10348, 12820, 12935, 16666, 25870, 33332, 33631, 41665, 51740, 67262, 83330, 108329, 127559, 134524, 166660, 168155, 216658, 255118, 336310, 433316, 510236, 541645, 637795, 672620, 1083290, 1275590, 1658267, 2166580, 2551180, 3316534, 6633068, 8291335, 16582670, 21557471, 33165340, 43114942, 86229884, 107787355, 215574710, 431149420]

約数ペア:

[(1, 431149420), (2, 215574710), (4, 107787355), (5, 86229884), (10, 43114942), (13, 33165340), (20, 21557471), (26, 16582670), (52, 8291335), (65, 6633068), (130, 3316534), (169, 2551180), (199, 2166580), (260, 1658267), (338, 1275590), (398, 1083290), (641, 672620), (676, 637795), (796, 541645), (845, 510236), (995, 433316), (1282, 336310), (1690, 255118), (1990, 216658), (2564, 168155), (2587, 166660), (3205, 134524), (3380, 127559), (3980, 108329), (5174, 83330), (6410, 67262), (8333, 51740), (10348, 41665), (12820, 33631), (12935, 33332), (16666, 25870)]