405931470940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{127979}}^1$

素因数の和:128515

約数の個数: 96

約数和(自身を含む): 952048339200

約数和(自身を除く): 546116868260

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 491, 646, 982, 1292, 1615, 1964, 2455, 3230, 4910, 6460, 8347, 9329, 9820, 16694, 18658, 33388, 37316, 41735, 46645, 83470, 93290, 127979, 158593, 166940, 186580, 255958, 317186, 511916, 634372, 639895, 792965, 1279790, 1585930, 2175643, 2431601, 2559580, 3171860, 4351286, 4863202, 8702572, 9726404, 10878215, 12158005, 21756430, 24316010, 41337217, 43512860, 48632020, 62837689, 82674434, 125675378, 165348868, 206686085, 251350756, 314188445, 413372170, 628376890, 826744340, 1068240713, 1193916091, 1256753780, 2136481426, 2387832182, 4272962852, 4775664364, 5341203565, 5969580455, 10682407130, 11939160910, 20296573547, 21364814260, 23878321820, 40593147094, 81186294188, 101482867735, 202965735470, 405931470940]

約数ペア:

[(1, 405931470940), (2, 202965735470), (4, 101482867735), (5, 81186294188), (10, 40593147094), (17, 23878321820), (19, 21364814260), (20, 20296573547), (34, 11939160910), (38, 10682407130), (68, 5969580455), (76, 5341203565), (85, 4775664364), (95, 4272962852), (170, 2387832182), (190, 2136481426), (323, 1256753780), (340, 1193916091), (380, 1068240713), (491, 826744340), (646, 628376890), (982, 413372170), (1292, 314188445), (1615, 251350756), (1964, 206686085), (2455, 165348868), (3230, 125675378), (4910, 82674434), (6460, 62837689), (8347, 48632020), (9329, 43512860), (9820, 41337217), (16694, 24316010), (18658, 21756430), (33388, 12158005), (37316, 10878215), (41735, 9726404), (46645, 8702572), (83470, 4863202), (93290, 4351286), (127979, 3171860), (158593, 2559580), (166940, 2431601), (186580, 2175643), (255958, 1585930), (317186, 1279790), (511916, 792965), (634372, 639895)]