256112820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1213}}^1$

素因数の和:1271

約数の個数: 192

約数和(自身を含む): 881072640

約数和(自身を除く): 624959820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 23, 27, 30, 34, 36, 45, 46, 51, 54, 60, 68, 69, 85, 90, 92, 102, 108, 115, 135, 138, 153, 170, 180, 204, 207, 230, 255, 270, 276, 306, 340, 345, 391, 414, 459, 460, 510, 540, 612, 621, 690, 765, 782, 828, 918, 1020, 1035, 1173, 1213, 1242, 1380, 1530, 1564, 1836, 1955, 2070, 2295, 2346, 2426, 2484, 3060, 3105, 3519, 3639, 3910, 4140, 4590, 4692, 4852, 5865, 6065, 6210, 7038, 7278, 7820, 9180, 10557, 10917, 11730, 12130, 12420, 14076, 14556, 17595, 18195, 20621, 21114, 21834, 23460, 24260, 27899, 32751, 35190, 36390, 41242, 42228, 43668, 52785, 54585, 55798, 61863, 65502, 70380, 72780, 82484, 83697, 103105, 105570, 109170, 111596, 123726, 131004, 139495, 163755, 167394, 185589, 206210, 211140, 218340, 247452, 251091, 278990, 309315, 327510, 334788, 371178, 412420, 418485, 474283, 502182, 556767, 557980, 618630, 655020, 742356, 753273, 836970, 927945, 948566, 1004364, 1113534, 1237260, 1255455, 1422849, 1506546, 1673940, 1855890, 1897132, 2227068, 2371415, 2510910, 2783835, 2845698, 3013092, 3711780, 3766365, 4268547, 4742830, 5021820, 5567670, 5691396, 7114245, 7532730, 8537094, 9485660, 11135340, 12805641, 14228490, 15065460, 17074188, 21342735, 25611282, 28456980, 42685470, 51222564, 64028205, 85370940, 128056410, 256112820]

約数ペア:

[(1, 256112820), (2, 128056410), (3, 85370940), (4, 64028205), (5, 51222564), (6, 42685470), (9, 28456980), (10, 25611282), (12, 21342735), (15, 17074188), (17, 15065460), (18, 14228490), (20, 12805641), (23, 11135340), (27, 9485660), (30, 8537094), (34, 7532730), (36, 7114245), (45, 5691396), (46, 5567670), (51, 5021820), (54, 4742830), (60, 4268547), (68, 3766365), (69, 3711780), (85, 3013092), (90, 2845698), (92, 2783835), (102, 2510910), (108, 2371415), (115, 2227068), (135, 1897132), (138, 1855890), (153, 1673940), (170, 1506546), (180, 1422849), (204, 1255455), (207, 1237260), (230, 1113534), (255, 1004364), (270, 948566), (276, 927945), (306, 836970), (340, 753273), (345, 742356), (391, 655020), (414, 618630), (459, 557980), (460, 556767), (510, 502182), (540, 474283), (612, 418485), (621, 412420), (690, 371178), (765, 334788), (782, 327510), (828, 309315), (918, 278990), (1020, 251091), (1035, 247452), (1173, 218340), (1213, 211140), (1242, 206210), (1380, 185589), (1530, 167394), (1564, 163755), (1836, 139495), (1955, 131004), (2070, 123726), (2295, 111596), (2346, 109170), (2426, 105570), (2484, 103105), (3060, 83697), (3105, 82484), (3519, 72780), (3639, 70380), (3910, 65502), (4140, 61863), (4590, 55798), (4692, 54585), (4852, 52785), (5865, 43668), (6065, 42228), (6210, 41242), (7038, 36390), (7278, 35190), (7820, 32751), (9180, 27899), (10557, 24260), (10917, 23460), (11730, 21834), (12130, 21114), (12420, 20621), (14076, 18195), (14556, 17595)]