2438392040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1\times {\mathrm{389}}^1$

素因数の和:835

約数の個数: 128

約数和(自身を含む): 6406732800

約数和(自身を除く): 3968340760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 367, 389, 427, 488, 610, 734, 778, 854, 1220, 1468, 1556, 1708, 1835, 1945, 2135, 2440, 2569, 2723, 2936, 3112, 3416, 3670, 3890, 4270, 5138, 5446, 7340, 7780, 8540, 10276, 10892, 12845, 13615, 14680, 15560, 17080, 20552, 21784, 22387, 23729, 25690, 27230, 44774, 47458, 51380, 54460, 89548, 94916, 102760, 108920, 111935, 118645, 142763, 156709, 166103, 179096, 189832, 223870, 237290, 285526, 313418, 332206, 447740, 474580, 571052, 626836, 664412, 713815, 783545, 830515, 895480, 949160, 999341, 1142104, 1253672, 1328824, 1427630, 1567090, 1661030, 1998682, 2855260, 3134180, 3322060, 3997364, 4996705, 5710520, 6268360, 6644120, 7994728, 8708543, 9993410, 17417086, 19986820, 34834172, 39973640, 43542715, 60959801, 69668344, 87085430, 121919602, 174170860, 243839204, 304799005, 348341720, 487678408, 609598010, 1219196020, 2438392040]

約数ペア:

[(1, 2438392040), (2, 1219196020), (4, 609598010), (5, 487678408), (7, 348341720), (8, 304799005), (10, 243839204), (14, 174170860), (20, 121919602), (28, 87085430), (35, 69668344), (40, 60959801), (56, 43542715), (61, 39973640), (70, 34834172), (122, 19986820), (140, 17417086), (244, 9993410), (280, 8708543), (305, 7994728), (367, 6644120), (389, 6268360), (427, 5710520), (488, 4996705), (610, 3997364), (734, 3322060), (778, 3134180), (854, 2855260), (1220, 1998682), (1468, 1661030), (1556, 1567090), (1708, 1427630), (1835, 1328824), (1945, 1253672), (2135, 1142104), (2440, 999341), (2569, 949160), (2723, 895480), (2936, 830515), (3112, 783545), (3416, 713815), (3670, 664412), (3890, 626836), (4270, 571052), (5138, 474580), (5446, 447740), (7340, 332206), (7780, 313418), (8540, 285526), (10276, 237290), (10892, 223870), (12845, 189832), (13615, 179096), (14680, 166103), (15560, 156709), (17080, 142763), (20552, 118645), (21784, 111935), (22387, 108920), (23729, 102760), (25690, 94916), (27230, 89548), (44774, 54460), (47458, 51380)]