38721420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:284

約数の個数: 144

約数和(自身を含む): 125798400

約数和(自身を除く): 87076980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 47, 60, 69, 90, 92, 94, 115, 138, 141, 180, 188, 199, 207, 230, 235, 276, 282, 345, 398, 414, 423, 460, 470, 564, 597, 690, 705, 796, 828, 846, 940, 995, 1035, 1081, 1194, 1380, 1410, 1692, 1791, 1990, 2070, 2115, 2162, 2388, 2820, 2985, 3243, 3582, 3980, 4140, 4230, 4324, 4577, 5405, 5970, 6486, 7164, 8460, 8955, 9154, 9353, 9729, 10810, 11940, 12972, 13731, 16215, 17910, 18308, 18706, 19458, 21620, 22885, 27462, 28059, 32430, 35820, 37412, 38916, 41193, 45770, 46765, 48645, 54924, 56118, 64860, 68655, 82386, 84177, 91540, 93530, 97290, 112236, 137310, 140295, 164772, 168354, 187060, 194580, 205965, 215119, 274620, 280590, 336708, 411930, 420885, 430238, 561180, 645357, 823860, 841770, 860476, 1075595, 1290714, 1683540, 1936071, 2151190, 2581428, 3226785, 3872142, 4302380, 6453570, 7744284, 9680355, 12907140, 19360710, 38721420]

約数ペア:

[(1, 38721420), (2, 19360710), (3, 12907140), (4, 9680355), (5, 7744284), (6, 6453570), (9, 4302380), (10, 3872142), (12, 3226785), (15, 2581428), (18, 2151190), (20, 1936071), (23, 1683540), (30, 1290714), (36, 1075595), (45, 860476), (46, 841770), (47, 823860), (60, 645357), (69, 561180), (90, 430238), (92, 420885), (94, 411930), (115, 336708), (138, 280590), (141, 274620), (180, 215119), (188, 205965), (199, 194580), (207, 187060), (230, 168354), (235, 164772), (276, 140295), (282, 137310), (345, 112236), (398, 97290), (414, 93530), (423, 91540), (460, 84177), (470, 82386), (564, 68655), (597, 64860), (690, 56118), (705, 54924), (796, 48645), (828, 46765), (846, 45770), (940, 41193), (995, 38916), (1035, 37412), (1081, 35820), (1194, 32430), (1380, 28059), (1410, 27462), (1692, 22885), (1791, 21620), (1990, 19458), (2070, 18706), (2115, 18308), (2162, 17910), (2388, 16215), (2820, 13731), (2985, 12972), (3243, 11940), (3582, 10810), (3980, 9729), (4140, 9353), (4230, 9154), (4324, 8955), (4577, 8460), (5405, 7164), (5970, 6486)]