318240

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:51

約数の個数: 144

約数和(自身を含む): 1238328

約数和(自身を除く): 920088

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 24, 26, 30, 32, 34, 36, 39, 40, 45, 48, 51, 52, 60, 65, 68, 72, 78, 80, 85, 90, 96, 102, 104, 117, 120, 130, 136, 144, 153, 156, 160, 170, 180, 195, 204, 208, 221, 234, 240, 255, 260, 272, 288, 306, 312, 340, 360, 390, 408, 416, 442, 468, 480, 510, 520, 544, 585, 612, 624, 663, 680, 720, 765, 780, 816, 884, 936, 1020, 1040, 1105, 1170, 1224, 1248, 1326, 1360, 1440, 1530, 1560, 1632, 1768, 1872, 1989, 2040, 2080, 2210, 2340, 2448, 2652, 2720, 3060, 3120, 3315, 3536, 3744, 3978, 4080, 4420, 4680, 4896, 5304, 6120, 6240, 6630, 7072, 7956, 8160, 8840, 9360, 9945, 10608, 12240, 13260, 15912, 17680, 18720, 19890, 21216, 24480, 26520, 31824, 35360, 39780, 53040, 63648, 79560, 106080, 159120, 318240]

約数ペア:

[(1, 318240), (2, 159120), (3, 106080), (4, 79560), (5, 63648), (6, 53040), (8, 39780), (9, 35360), (10, 31824), (12, 26520), (13, 24480), (15, 21216), (16, 19890), (17, 18720), (18, 17680), (20, 15912), (24, 13260), (26, 12240), (30, 10608), (32, 9945), (34, 9360), (36, 8840), (39, 8160), (40, 7956), (45, 7072), (48, 6630), (51, 6240), (52, 6120), (60, 5304), (65, 4896), (68, 4680), (72, 4420), (78, 4080), (80, 3978), (85, 3744), (90, 3536), (96, 3315), (102, 3120), (104, 3060), (117, 2720), (120, 2652), (130, 2448), (136, 2340), (144, 2210), (153, 2080), (156, 2040), (160, 1989), (170, 1872), (180, 1768), (195, 1632), (204, 1560), (208, 1530), (221, 1440), (234, 1360), (240, 1326), (255, 1248), (260, 1224), (272, 1170), (288, 1105), (306, 1040), (312, 1020), (340, 936), (360, 884), (390, 816), (408, 780), (416, 765), (442, 720), (468, 680), (480, 663), (510, 624), (520, 612), (544, 585)]