28908120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:473

約数の個数: 128

約数和(自身を含む): 94464000

約数和(自身を除く): 65555880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 31, 38, 40, 57, 60, 62, 76, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 248, 285, 310, 372, 380, 409, 456, 465, 570, 589, 620, 744, 760, 818, 930, 1140, 1178, 1227, 1240, 1636, 1767, 1860, 2045, 2280, 2356, 2454, 2945, 3272, 3534, 3720, 4090, 4712, 4908, 5890, 6135, 7068, 7771, 8180, 8835, 9816, 11780, 12270, 12679, 14136, 15542, 16360, 17670, 23313, 23560, 24540, 25358, 31084, 35340, 38037, 38855, 46626, 49080, 50716, 62168, 63395, 70680, 76074, 77710, 93252, 101432, 116565, 126790, 152148, 155420, 186504, 190185, 233130, 240901, 253580, 304296, 310840, 380370, 466260, 481802, 507160, 722703, 760740, 932520, 963604, 1204505, 1445406, 1521480, 1927208, 2409010, 2890812, 3613515, 4818020, 5781624, 7227030, 9636040, 14454060, 28908120]

約数ペア:

[(1, 28908120), (2, 14454060), (3, 9636040), (4, 7227030), (5, 5781624), (6, 4818020), (8, 3613515), (10, 2890812), (12, 2409010), (15, 1927208), (19, 1521480), (20, 1445406), (24, 1204505), (30, 963604), (31, 932520), (38, 760740), (40, 722703), (57, 507160), (60, 481802), (62, 466260), (76, 380370), (93, 310840), (95, 304296), (114, 253580), (120, 240901), (124, 233130), (152, 190185), (155, 186504), (186, 155420), (190, 152148), (228, 126790), (248, 116565), (285, 101432), (310, 93252), (372, 77710), (380, 76074), (409, 70680), (456, 63395), (465, 62168), (570, 50716), (589, 49080), (620, 46626), (744, 38855), (760, 38037), (818, 35340), (930, 31084), (1140, 25358), (1178, 24540), (1227, 23560), (1240, 23313), (1636, 17670), (1767, 16360), (1860, 15542), (2045, 14136), (2280, 12679), (2356, 12270), (2454, 11780), (2945, 9816), (3272, 8835), (3534, 8180), (3720, 7771), (4090, 7068), (4712, 6135), (4908, 5890)]