318678640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{491}}^1$

素因数の和:591

約数の個数: 160

約数和(自身を含む): 907799040

約数和(自身を除く): 589120400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 61, 70, 76, 80, 95, 112, 122, 133, 140, 152, 190, 244, 266, 280, 304, 305, 380, 427, 488, 491, 532, 560, 610, 665, 760, 854, 976, 982, 1064, 1159, 1220, 1330, 1520, 1708, 1964, 2128, 2135, 2318, 2440, 2455, 2660, 3416, 3437, 3928, 4270, 4636, 4880, 4910, 5320, 5795, 6832, 6874, 7856, 8113, 8540, 9272, 9329, 9820, 10640, 11590, 13748, 16226, 17080, 17185, 18544, 18658, 19640, 23180, 27496, 29951, 32452, 34160, 34370, 37316, 39280, 40565, 46360, 46645, 54992, 59902, 64904, 65303, 68740, 74632, 81130, 92720, 93290, 119804, 129808, 130606, 137480, 149264, 149755, 162260, 186580, 209657, 239608, 261212, 274960, 299510, 324520, 326515, 373160, 419314, 479216, 522424, 569069, 599020, 649040, 653030, 746320, 838628, 1044848, 1048285, 1138138, 1198040, 1306060, 1677256, 2096570, 2276276, 2396080, 2612120, 2845345, 3354512, 3983483, 4193140, 4552552, 5224240, 5690690, 7966966, 8386280, 9105104, 11381380, 15933932, 16772560, 19917415, 22762760, 31867864, 39834830, 45525520, 63735728, 79669660, 159339320, 318678640]

約数ペア:

[(1, 318678640), (2, 159339320), (4, 79669660), (5, 63735728), (7, 45525520), (8, 39834830), (10, 31867864), (14, 22762760), (16, 19917415), (19, 16772560), (20, 15933932), (28, 11381380), (35, 9105104), (38, 8386280), (40, 7966966), (56, 5690690), (61, 5224240), (70, 4552552), (76, 4193140), (80, 3983483), (95, 3354512), (112, 2845345), (122, 2612120), (133, 2396080), (140, 2276276), (152, 2096570), (190, 1677256), (244, 1306060), (266, 1198040), (280, 1138138), (304, 1048285), (305, 1044848), (380, 838628), (427, 746320), (488, 653030), (491, 649040), (532, 599020), (560, 569069), (610, 522424), (665, 479216), (760, 419314), (854, 373160), (976, 326515), (982, 324520), (1064, 299510), (1159, 274960), (1220, 261212), (1330, 239608), (1520, 209657), (1708, 186580), (1964, 162260), (2128, 149755), (2135, 149264), (2318, 137480), (2440, 130606), (2455, 129808), (2660, 119804), (3416, 93290), (3437, 92720), (3928, 81130), (4270, 74632), (4636, 68740), (4880, 65303), (4910, 64904), (5320, 59902), (5795, 54992), (6832, 46645), (6874, 46360), (7856, 40565), (8113, 39280), (8540, 37316), (9272, 34370), (9329, 34160), (9820, 32452), (10640, 29951), (11590, 27496), (13748, 23180), (16226, 19640), (17080, 18658), (17185, 18544)]