215405640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{577}}^1$

素因数の和:672

約数の個数: 192

約数和(自身を含む): 754706160

約数和(自身を除く): 539300520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 61, 68, 72, 85, 90, 102, 120, 122, 136, 153, 170, 180, 183, 204, 244, 255, 305, 306, 340, 360, 366, 408, 488, 510, 549, 577, 610, 612, 680, 732, 765, 915, 1020, 1037, 1098, 1154, 1220, 1224, 1464, 1530, 1731, 1830, 2040, 2074, 2196, 2308, 2440, 2745, 2885, 3060, 3111, 3462, 3660, 4148, 4392, 4616, 5185, 5193, 5490, 5770, 6120, 6222, 6924, 7320, 8296, 8655, 9333, 9809, 10370, 10386, 10980, 11540, 12444, 13848, 15555, 17310, 18666, 19618, 20740, 20772, 21960, 23080, 24888, 25965, 29427, 31110, 34620, 35197, 37332, 39236, 41480, 41544, 46665, 49045, 51930, 58854, 62220, 69240, 70394, 74664, 78472, 88281, 93330, 98090, 103860, 105591, 117708, 124440, 140788, 147135, 175985, 176562, 186660, 196180, 207720, 211182, 235416, 281576, 294270, 316773, 351970, 353124, 373320, 392360, 422364, 441405, 527955, 588540, 598349, 633546, 703940, 706248, 844728, 882810, 1055910, 1177080, 1196698, 1267092, 1407880, 1583865, 1765620, 1795047, 2111820, 2393396, 2534184, 2991745, 3167730, 3531240, 3590094, 4223640, 4786792, 5385141, 5983490, 6335460, 7180188, 8975235, 10770282, 11966980, 12670920, 14360376, 17950470, 21540564, 23933960, 26925705, 35900940, 43081128, 53851410, 71801880, 107702820, 215405640]

約数ペア:

[(1, 215405640), (2, 107702820), (3, 71801880), (4, 53851410), (5, 43081128), (6, 35900940), (8, 26925705), (9, 23933960), (10, 21540564), (12, 17950470), (15, 14360376), (17, 12670920), (18, 11966980), (20, 10770282), (24, 8975235), (30, 7180188), (34, 6335460), (36, 5983490), (40, 5385141), (45, 4786792), (51, 4223640), (60, 3590094), (61, 3531240), (68, 3167730), (72, 2991745), (85, 2534184), (90, 2393396), (102, 2111820), (120, 1795047), (122, 1765620), (136, 1583865), (153, 1407880), (170, 1267092), (180, 1196698), (183, 1177080), (204, 1055910), (244, 882810), (255, 844728), (305, 706248), (306, 703940), (340, 633546), (360, 598349), (366, 588540), (408, 527955), (488, 441405), (510, 422364), (549, 392360), (577, 373320), (610, 353124), (612, 351970), (680, 316773), (732, 294270), (765, 281576), (915, 235416), (1020, 211182), (1037, 207720), (1098, 196180), (1154, 186660), (1220, 176562), (1224, 175985), (1464, 147135), (1530, 140788), (1731, 124440), (1830, 117708), (2040, 105591), (2074, 103860), (2196, 98090), (2308, 93330), (2440, 88281), (2745, 78472), (2885, 74664), (3060, 70394), (3111, 69240), (3462, 62220), (3660, 58854), (4148, 51930), (4392, 49045), (4616, 46665), (5185, 41544), (5193, 41480), (5490, 39236), (5770, 37332), (6120, 35197), (6222, 34620), (6924, 31110), (7320, 29427), (8296, 25965), (8655, 24888), (9333, 23080), (9809, 21960), (10370, 20772), (10386, 20740), (10980, 19618), (11540, 18666), (12444, 17310), (13848, 15555)]