256423920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{3697}}^1$

素因数の和:3747

約数の個数: 120

約数和(自身を含む): 844652784

約数和(自身を除く): 588228864

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 289, 340, 408, 510, 578, 680, 816, 867, 1020, 1156, 1360, 1445, 1734, 2040, 2312, 2890, 3468, 3697, 4080, 4335, 4624, 5780, 6936, 7394, 8670, 11091, 11560, 13872, 14788, 17340, 18485, 22182, 23120, 29576, 34680, 36970, 44364, 55455, 59152, 62849, 69360, 73940, 88728, 110910, 125698, 147880, 177456, 188547, 221820, 251396, 295760, 314245, 377094, 443640, 502792, 628490, 754188, 887280, 942735, 1005584, 1068433, 1256980, 1508376, 1885470, 2136866, 2513960, 3016752, 3205299, 3770940, 4273732, 5027920, 5342165, 6410598, 7541880, 8547464, 10684330, 12821196, 15083760, 16026495, 17094928, 21368660, 25642392, 32052990, 42737320, 51284784, 64105980, 85474640, 128211960, 256423920]

約数ペア:

[(1, 256423920), (2, 128211960), (3, 85474640), (4, 64105980), (5, 51284784), (6, 42737320), (8, 32052990), (10, 25642392), (12, 21368660), (15, 17094928), (16, 16026495), (17, 15083760), (20, 12821196), (24, 10684330), (30, 8547464), (34, 7541880), (40, 6410598), (48, 5342165), (51, 5027920), (60, 4273732), (68, 3770940), (80, 3205299), (85, 3016752), (102, 2513960), (120, 2136866), (136, 1885470), (170, 1508376), (204, 1256980), (240, 1068433), (255, 1005584), (272, 942735), (289, 887280), (340, 754188), (408, 628490), (510, 502792), (578, 443640), (680, 377094), (816, 314245), (867, 295760), (1020, 251396), (1156, 221820), (1360, 188547), (1445, 177456), (1734, 147880), (2040, 125698), (2312, 110910), (2890, 88728), (3468, 73940), (3697, 69360), (4080, 62849), (4335, 59152), (4624, 55455), (5780, 44364), (6936, 36970), (7394, 34680), (8670, 29576), (11091, 23120), (11560, 22182), (13872, 18485), (14788, 17340)]