641280780

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8929}}^1$

素因数の和:8973

約数の個数: 192

約数和(自身を含む): 2400384000

約数和(自身を除く): 1759103220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 266, 270, 285, 315, 342, 378, 380, 399, 420, 513, 532, 540, 570, 630, 665, 684, 756, 798, 855, 945, 1026, 1140, 1197, 1260, 1330, 1596, 1710, 1890, 1995, 2052, 2394, 2565, 2660, 3420, 3591, 3780, 3990, 4788, 5130, 5985, 7182, 7980, 8929, 10260, 11970, 14364, 17858, 17955, 23940, 26787, 35716, 35910, 44645, 53574, 62503, 71820, 80361, 89290, 107148, 125006, 133935, 160722, 169651, 178580, 187509, 241083, 250012, 267870, 312515, 321444, 339302, 375018, 401805, 482166, 508953, 535740, 562527, 625030, 678604, 750036, 803610, 848255, 937545, 964332, 1017906, 1125054, 1187557, 1205415, 1250060, 1526859, 1607220, 1687581, 1696510, 1875090, 2035812, 2250108, 2375114, 2410830, 2544765, 2812635, 3053718, 3375162, 3393020, 3562671, 3750180, 4580577, 4750228, 4821660, 5089530, 5625270, 5937785, 6107436, 6750324, 7125342, 7634295, 8437905, 9161154, 10179060, 10688013, 11250540, 11875570, 14250684, 15268590, 16875810, 17813355, 18322308, 21376026, 22902885, 23751140, 30537180, 32064039, 33751620, 35626710, 42752052, 45805770, 53440065, 64128078, 71253420, 91611540, 106880130, 128256156, 160320195, 213760260, 320640390, 641280780]

約数ペア:

[(1, 641280780), (2, 320640390), (3, 213760260), (4, 160320195), (5, 128256156), (6, 106880130), (7, 91611540), (9, 71253420), (10, 64128078), (12, 53440065), (14, 45805770), (15, 42752052), (18, 35626710), (19, 33751620), (20, 32064039), (21, 30537180), (27, 23751140), (28, 22902885), (30, 21376026), (35, 18322308), (36, 17813355), (38, 16875810), (42, 15268590), (45, 14250684), (54, 11875570), (57, 11250540), (60, 10688013), (63, 10179060), (70, 9161154), (76, 8437905), (84, 7634295), (90, 7125342), (95, 6750324), (105, 6107436), (108, 5937785), (114, 5625270), (126, 5089530), (133, 4821660), (135, 4750228), (140, 4580577), (171, 3750180), (180, 3562671), (189, 3393020), (190, 3375162), (210, 3053718), (228, 2812635), (252, 2544765), (266, 2410830), (270, 2375114), (285, 2250108), (315, 2035812), (342, 1875090), (378, 1696510), (380, 1687581), (399, 1607220), (420, 1526859), (513, 1250060), (532, 1205415), (540, 1187557), (570, 1125054), (630, 1017906), (665, 964332), (684, 937545), (756, 848255), (798, 803610), (855, 750036), (945, 678604), (1026, 625030), (1140, 562527), (1197, 535740), (1260, 508953), (1330, 482166), (1596, 401805), (1710, 375018), (1890, 339302), (1995, 321444), (2052, 312515), (2394, 267870), (2565, 250012), (2660, 241083), (3420, 187509), (3591, 178580), (3780, 169651), (3990, 160722), (4788, 133935), (5130, 125006), (5985, 107148), (7182, 89290), (7980, 80361), (8929, 71820), (10260, 62503), (11970, 53574), (14364, 44645), (17858, 35910), (17955, 35716), (23940, 26787)]