638914140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1471}}^1$

素因数の和:1632

約数の個数: 144

約数和(自身を含む): 2057502720

約数和(自身を除く): 1418588580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 127, 171, 180, 190, 228, 254, 285, 342, 380, 381, 508, 570, 635, 684, 762, 855, 1140, 1143, 1270, 1471, 1524, 1710, 1905, 2286, 2413, 2540, 2942, 3420, 3810, 4413, 4572, 4826, 5715, 5884, 7239, 7355, 7620, 8826, 9652, 11430, 12065, 13239, 14478, 14710, 17652, 21717, 22065, 22860, 24130, 26478, 27949, 28956, 29420, 36195, 43434, 44130, 48260, 52956, 55898, 66195, 72390, 83847, 86868, 88260, 108585, 111796, 132390, 139745, 144780, 167694, 186817, 217170, 251541, 264780, 279490, 335388, 373634, 419235, 434340, 503082, 558980, 560451, 747268, 838470, 934085, 1006164, 1120902, 1257705, 1676940, 1681353, 1868170, 2241804, 2515410, 2802255, 3362706, 3549523, 3736340, 5030820, 5604510, 6725412, 7099046, 8406765, 10648569, 11209020, 14198092, 16813530, 17747615, 21297138, 31945707, 33627060, 35495230, 42594276, 53242845, 63891414, 70990460, 106485690, 127782828, 159728535, 212971380, 319457070, 638914140]

約数ペア:

[(1, 638914140), (2, 319457070), (3, 212971380), (4, 159728535), (5, 127782828), (6, 106485690), (9, 70990460), (10, 63891414), (12, 53242845), (15, 42594276), (18, 35495230), (19, 33627060), (20, 31945707), (30, 21297138), (36, 17747615), (38, 16813530), (45, 14198092), (57, 11209020), (60, 10648569), (76, 8406765), (90, 7099046), (95, 6725412), (114, 5604510), (127, 5030820), (171, 3736340), (180, 3549523), (190, 3362706), (228, 2802255), (254, 2515410), (285, 2241804), (342, 1868170), (380, 1681353), (381, 1676940), (508, 1257705), (570, 1120902), (635, 1006164), (684, 934085), (762, 838470), (855, 747268), (1140, 560451), (1143, 558980), (1270, 503082), (1471, 434340), (1524, 419235), (1710, 373634), (1905, 335388), (2286, 279490), (2413, 264780), (2540, 251541), (2942, 217170), (3420, 186817), (3810, 167694), (4413, 144780), (4572, 139745), (4826, 132390), (5715, 111796), (5884, 108585), (7239, 88260), (7355, 86868), (7620, 83847), (8826, 72390), (9652, 66195), (11430, 55898), (12065, 52956), (13239, 48260), (14478, 44130), (14710, 43434), (17652, 36195), (21717, 29420), (22065, 28956), (22860, 27949), (24130, 26478)]