81470340

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{3079}}^1$

素因数の和:3111

約数の個数: 144

約数和(自身を含む): 294940800

約数和(自身を除く): 213470460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 882, 945, 980, 1260, 1323, 1470, 1764, 1890, 2205, 2646, 2940, 3079, 3780, 4410, 5292, 6158, 6615, 8820, 9237, 12316, 13230, 15395, 18474, 21553, 26460, 27711, 30790, 36948, 43106, 46185, 55422, 61580, 64659, 83133, 86212, 92370, 107765, 110844, 129318, 138555, 150871, 166266, 184740, 193977, 215530, 258636, 277110, 301742, 323295, 332532, 387954, 415665, 431060, 452613, 554220, 581931, 603484, 646590, 754355, 775908, 831330, 905226, 969885, 1163862, 1293180, 1357839, 1508710, 1662660, 1810452, 1939770, 2263065, 2327724, 2715678, 2909655, 3017420, 3879540, 4073517, 4526130, 5431356, 5819310, 6789195, 8147034, 9052260, 11638620, 13578390, 16294068, 20367585, 27156780, 40735170, 81470340]

約数ペア:

[(1, 81470340), (2, 40735170), (3, 27156780), (4, 20367585), (5, 16294068), (6, 13578390), (7, 11638620), (9, 9052260), (10, 8147034), (12, 6789195), (14, 5819310), (15, 5431356), (18, 4526130), (20, 4073517), (21, 3879540), (27, 3017420), (28, 2909655), (30, 2715678), (35, 2327724), (36, 2263065), (42, 1939770), (45, 1810452), (49, 1662660), (54, 1508710), (60, 1357839), (63, 1293180), (70, 1163862), (84, 969885), (90, 905226), (98, 831330), (105, 775908), (108, 754355), (126, 646590), (135, 603484), (140, 581931), (147, 554220), (180, 452613), (189, 431060), (196, 415665), (210, 387954), (245, 332532), (252, 323295), (270, 301742), (294, 277110), (315, 258636), (378, 215530), (420, 193977), (441, 184740), (490, 166266), (540, 150871), (588, 138555), (630, 129318), (735, 110844), (756, 107765), (882, 92370), (945, 86212), (980, 83133), (1260, 64659), (1323, 61580), (1470, 55422), (1764, 46185), (1890, 43106), (2205, 36948), (2646, 30790), (2940, 27711), (3079, 26460), (3780, 21553), (4410, 18474), (5292, 15395), (6158, 13230), (6615, 12316), (8820, 9237)]