25221420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{541}}^1$

素因数の和:600

約数の個数: 144

約数和(自身を含む): 89963328

約数和(自身を除く): 64741908

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 60, 63, 70, 74, 84, 90, 105, 111, 126, 140, 148, 180, 185, 210, 222, 252, 259, 315, 333, 370, 420, 444, 518, 541, 555, 630, 666, 740, 777, 1036, 1082, 1110, 1260, 1295, 1332, 1554, 1623, 1665, 2164, 2220, 2331, 2590, 2705, 3108, 3246, 3330, 3787, 3885, 4662, 4869, 5180, 5410, 6492, 6660, 7574, 7770, 8115, 9324, 9738, 10820, 11361, 11655, 15148, 15540, 16230, 18935, 19476, 20017, 22722, 23310, 24345, 32460, 34083, 37870, 40034, 45444, 46620, 48690, 56805, 60051, 68166, 75740, 80068, 97380, 100085, 113610, 120102, 136332, 140119, 170415, 180153, 200170, 227220, 240204, 280238, 300255, 340830, 360306, 400340, 420357, 560476, 600510, 681660, 700595, 720612, 840714, 900765, 1201020, 1261071, 1401190, 1681428, 1801530, 2101785, 2522142, 2802380, 3603060, 4203570, 5044284, 6305355, 8407140, 12610710, 25221420]

約数ペア:

[(1, 25221420), (2, 12610710), (3, 8407140), (4, 6305355), (5, 5044284), (6, 4203570), (7, 3603060), (9, 2802380), (10, 2522142), (12, 2101785), (14, 1801530), (15, 1681428), (18, 1401190), (20, 1261071), (21, 1201020), (28, 900765), (30, 840714), (35, 720612), (36, 700595), (37, 681660), (42, 600510), (45, 560476), (60, 420357), (63, 400340), (70, 360306), (74, 340830), (84, 300255), (90, 280238), (105, 240204), (111, 227220), (126, 200170), (140, 180153), (148, 170415), (180, 140119), (185, 136332), (210, 120102), (222, 113610), (252, 100085), (259, 97380), (315, 80068), (333, 75740), (370, 68166), (420, 60051), (444, 56805), (518, 48690), (541, 46620), (555, 45444), (630, 40034), (666, 37870), (740, 34083), (777, 32460), (1036, 24345), (1082, 23310), (1110, 22722), (1260, 20017), (1295, 19476), (1332, 18935), (1554, 16230), (1623, 15540), (1665, 15148), (2164, 11655), (2220, 11361), (2331, 10820), (2590, 9738), (2705, 9324), (3108, 8115), (3246, 7770), (3330, 7574), (3787, 6660), (3885, 6492), (4662, 5410), (4869, 5180)]