40021400

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 100440000

約数和(自身を除く): 60418600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 79, 85, 100, 136, 149, 158, 170, 200, 298, 316, 340, 395, 425, 596, 632, 680, 745, 790, 850, 1192, 1343, 1490, 1580, 1700, 1975, 2533, 2686, 2980, 3160, 3400, 3725, 3950, 5066, 5372, 5960, 6715, 7450, 7900, 10132, 10744, 11771, 12665, 13430, 14900, 15800, 20264, 23542, 25330, 26860, 29800, 33575, 47084, 50660, 53720, 58855, 63325, 67150, 94168, 101320, 117710, 126650, 134300, 200107, 235420, 253300, 268600, 294275, 400214, 470840, 506600, 588550, 800428, 1000535, 1177100, 1600856, 2001070, 2354200, 4002140, 5002675, 8004280, 10005350, 20010700, 40021400]

約数ペア:

[(1, 40021400), (2, 20010700), (4, 10005350), (5, 8004280), (8, 5002675), (10, 4002140), (17, 2354200), (20, 2001070), (25, 1600856), (34, 1177100), (40, 1000535), (50, 800428), (68, 588550), (79, 506600), (85, 470840), (100, 400214), (136, 294275), (149, 268600), (158, 253300), (170, 235420), (200, 200107), (298, 134300), (316, 126650), (340, 117710), (395, 101320), (425, 94168), (596, 67150), (632, 63325), (680, 58855), (745, 53720), (790, 50660), (850, 47084), (1192, 33575), (1343, 29800), (1490, 26860), (1580, 25330), (1700, 23542), (1975, 20264), (2533, 15800), (2686, 14900), (2980, 13430), (3160, 12665), (3400, 11771), (3725, 10744), (3950, 10132), (5066, 7900), (5372, 7450), (5960, 6715)]