1215155640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{1187}}^1$

素因数の和:1669

約数の個数: 128

約数和(自身を含む): 3849120000

約数和(自身を除く): 2633964360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 449, 456, 570, 760, 898, 1140, 1187, 1347, 1796, 2245, 2280, 2374, 2694, 3561, 3592, 4490, 4748, 5388, 5935, 6735, 7122, 8531, 8980, 9496, 10776, 11870, 13470, 14244, 17062, 17805, 17960, 22553, 23740, 25593, 26940, 28488, 34124, 35610, 42655, 45106, 47480, 51186, 53880, 67659, 68248, 71220, 85310, 90212, 102372, 112765, 127965, 135318, 142440, 170620, 180424, 204744, 225530, 255930, 270636, 338295, 341240, 451060, 511860, 532963, 541272, 676590, 902120, 1023720, 1065926, 1353180, 1598889, 2131852, 2664815, 2706360, 3197778, 4263704, 5329630, 6395556, 7994445, 10126297, 10659260, 12791112, 15988890, 20252594, 21318520, 30378891, 31977780, 40505188, 50631485, 60757782, 63955560, 81010376, 101262970, 121515564, 151894455, 202525940, 243031128, 303788910, 405051880, 607577820, 1215155640]

約数ペア:

[(1, 1215155640), (2, 607577820), (3, 405051880), (4, 303788910), (5, 243031128), (6, 202525940), (8, 151894455), (10, 121515564), (12, 101262970), (15, 81010376), (19, 63955560), (20, 60757782), (24, 50631485), (30, 40505188), (38, 31977780), (40, 30378891), (57, 21318520), (60, 20252594), (76, 15988890), (95, 12791112), (114, 10659260), (120, 10126297), (152, 7994445), (190, 6395556), (228, 5329630), (285, 4263704), (380, 3197778), (449, 2706360), (456, 2664815), (570, 2131852), (760, 1598889), (898, 1353180), (1140, 1065926), (1187, 1023720), (1347, 902120), (1796, 676590), (2245, 541272), (2280, 532963), (2374, 511860), (2694, 451060), (3561, 341240), (3592, 338295), (4490, 270636), (4748, 255930), (5388, 225530), (5935, 204744), (6735, 180424), (7122, 170620), (8531, 142440), (8980, 135318), (9496, 127965), (10776, 112765), (11870, 102372), (13470, 90212), (14244, 85310), (17062, 71220), (17805, 68248), (17960, 67659), (22553, 53880), (23740, 51186), (25593, 47480), (26940, 45106), (28488, 42655), (34124, 35610)]