778830390

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1999}}^1$

素因数の和:2068

約数の個数: 160

約数和(自身を含む): 2317392000

約数和(自身を除く): 1538561610

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 37, 39, 45, 54, 65, 74, 78, 81, 90, 111, 117, 130, 135, 162, 185, 195, 222, 234, 270, 333, 351, 370, 390, 405, 481, 555, 585, 666, 702, 810, 962, 999, 1053, 1110, 1170, 1443, 1665, 1755, 1998, 1999, 2106, 2405, 2886, 2997, 3330, 3510, 3998, 4329, 4810, 4995, 5265, 5994, 5997, 7215, 8658, 9990, 9995, 10530, 11994, 12987, 14430, 14985, 17991, 19990, 21645, 25974, 25987, 29970, 29985, 35982, 38961, 43290, 51974, 53973, 59970, 64935, 73963, 77922, 77961, 89955, 107946, 129870, 129935, 147926, 155922, 161919, 179910, 194805, 221889, 233883, 259870, 269865, 323838, 369815, 389610, 389805, 443778, 467766, 539730, 665667, 701649, 739630, 779610, 809595, 961519, 1109445, 1169415, 1331334, 1403298, 1619190, 1923038, 1997001, 2104947, 2218890, 2338830, 2884557, 3328335, 3508245, 3994002, 4209894, 4807595, 5769114, 5991003, 6656670, 7016490, 8653671, 9615190, 9985005, 10524735, 11982006, 14422785, 17307342, 19970010, 21049470, 25961013, 28845570, 29955015, 43268355, 51922026, 59910030, 77883039, 86536710, 129805065, 155766078, 259610130, 389415195, 778830390]

約数ペア:

[(1, 778830390), (2, 389415195), (3, 259610130), (5, 155766078), (6, 129805065), (9, 86536710), (10, 77883039), (13, 59910030), (15, 51922026), (18, 43268355), (26, 29955015), (27, 28845570), (30, 25961013), (37, 21049470), (39, 19970010), (45, 17307342), (54, 14422785), (65, 11982006), (74, 10524735), (78, 9985005), (81, 9615190), (90, 8653671), (111, 7016490), (117, 6656670), (130, 5991003), (135, 5769114), (162, 4807595), (185, 4209894), (195, 3994002), (222, 3508245), (234, 3328335), (270, 2884557), (333, 2338830), (351, 2218890), (370, 2104947), (390, 1997001), (405, 1923038), (481, 1619190), (555, 1403298), (585, 1331334), (666, 1169415), (702, 1109445), (810, 961519), (962, 809595), (999, 779610), (1053, 739630), (1110, 701649), (1170, 665667), (1443, 539730), (1665, 467766), (1755, 443778), (1998, 389805), (1999, 389610), (2106, 369815), (2405, 323838), (2886, 269865), (2997, 259870), (3330, 233883), (3510, 221889), (3998, 194805), (4329, 179910), (4810, 161919), (4995, 155922), (5265, 147926), (5994, 129935), (5997, 129870), (7215, 107946), (8658, 89955), (9990, 77961), (9995, 77922), (10530, 73963), (11994, 64935), (12987, 59970), (14430, 53973), (14985, 51974), (17991, 43290), (19990, 38961), (21645, 35982), (25974, 29985), (25987, 29970)]