30891720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{797}}^1$

素因数の和:847

約数の個数: 128

約数和(自身を含む): 103420800

約数和(自身を除く): 72529080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 19, 20, 24, 30, 34, 38, 40, 51, 57, 60, 68, 76, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 255, 285, 323, 340, 380, 408, 456, 510, 570, 646, 680, 760, 797, 969, 1020, 1140, 1292, 1594, 1615, 1938, 2040, 2280, 2391, 2584, 3188, 3230, 3876, 3985, 4782, 4845, 6376, 6460, 7752, 7970, 9564, 9690, 11955, 12920, 13549, 15143, 15940, 19128, 19380, 23910, 27098, 30286, 31880, 38760, 40647, 45429, 47820, 54196, 60572, 67745, 75715, 81294, 90858, 95640, 108392, 121144, 135490, 151430, 162588, 181716, 203235, 227145, 257431, 270980, 302860, 325176, 363432, 406470, 454290, 514862, 541960, 605720, 772293, 812940, 908580, 1029724, 1287155, 1544586, 1625880, 1817160, 2059448, 2574310, 3089172, 3861465, 5148620, 6178344, 7722930, 10297240, 15445860, 30891720]

約数ペア:

[(1, 30891720), (2, 15445860), (3, 10297240), (4, 7722930), (5, 6178344), (6, 5148620), (8, 3861465), (10, 3089172), (12, 2574310), (15, 2059448), (17, 1817160), (19, 1625880), (20, 1544586), (24, 1287155), (30, 1029724), (34, 908580), (38, 812940), (40, 772293), (51, 605720), (57, 541960), (60, 514862), (68, 454290), (76, 406470), (85, 363432), (95, 325176), (102, 302860), (114, 270980), (120, 257431), (136, 227145), (152, 203235), (170, 181716), (190, 162588), (204, 151430), (228, 135490), (255, 121144), (285, 108392), (323, 95640), (340, 90858), (380, 81294), (408, 75715), (456, 67745), (510, 60572), (570, 54196), (646, 47820), (680, 45429), (760, 40647), (797, 38760), (969, 31880), (1020, 30286), (1140, 27098), (1292, 23910), (1594, 19380), (1615, 19128), (1938, 15940), (2040, 15143), (2280, 13549), (2391, 12920), (2584, 11955), (3188, 9690), (3230, 9564), (3876, 7970), (3985, 7752), (4782, 6460), (4845, 6376)]