78855920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:211

約数の個数: 160

約数和(自身を含む): 220860864

約数和(自身を除く): 142004944

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 61, 65, 80, 88, 104, 110, 113, 122, 130, 143, 176, 208, 220, 226, 244, 260, 286, 305, 440, 452, 488, 520, 565, 572, 610, 671, 715, 793, 880, 904, 976, 1040, 1130, 1144, 1220, 1243, 1342, 1430, 1469, 1586, 1808, 2260, 2288, 2440, 2486, 2684, 2860, 2938, 3172, 3355, 3965, 4520, 4880, 4972, 5368, 5720, 5876, 6215, 6344, 6710, 6893, 7345, 7930, 8723, 9040, 9944, 10736, 11440, 11752, 12430, 12688, 13420, 13786, 14690, 15860, 16159, 17446, 19888, 23504, 24860, 26840, 27572, 29380, 31720, 32318, 34465, 34892, 43615, 49720, 53680, 55144, 58760, 63440, 64636, 68930, 69784, 75823, 80795, 87230, 89609, 99440, 110288, 117520, 129272, 137860, 139568, 151646, 161590, 174460, 179218, 258544, 275720, 303292, 323180, 348920, 358436, 379115, 448045, 551440, 606584, 646360, 697840, 716872, 758230, 896090, 985699, 1213168, 1292720, 1433744, 1516460, 1792180, 1971398, 3032920, 3584360, 3942796, 4928495, 6065840, 7168720, 7885592, 9856990, 15771184, 19713980, 39427960, 78855920]

約数ペア:

[(1, 78855920), (2, 39427960), (4, 19713980), (5, 15771184), (8, 9856990), (10, 7885592), (11, 7168720), (13, 6065840), (16, 4928495), (20, 3942796), (22, 3584360), (26, 3032920), (40, 1971398), (44, 1792180), (52, 1516460), (55, 1433744), (61, 1292720), (65, 1213168), (80, 985699), (88, 896090), (104, 758230), (110, 716872), (113, 697840), (122, 646360), (130, 606584), (143, 551440), (176, 448045), (208, 379115), (220, 358436), (226, 348920), (244, 323180), (260, 303292), (286, 275720), (305, 258544), (440, 179218), (452, 174460), (488, 161590), (520, 151646), (565, 139568), (572, 137860), (610, 129272), (671, 117520), (715, 110288), (793, 99440), (880, 89609), (904, 87230), (976, 80795), (1040, 75823), (1130, 69784), (1144, 68930), (1220, 64636), (1243, 63440), (1342, 58760), (1430, 55144), (1469, 53680), (1586, 49720), (1808, 43615), (2260, 34892), (2288, 34465), (2440, 32318), (2486, 31720), (2684, 29380), (2860, 27572), (2938, 26840), (3172, 24860), (3355, 23504), (3965, 19888), (4520, 17446), (4880, 16159), (4972, 15860), (5368, 14690), (5720, 13786), (5876, 13420), (6215, 12688), (6344, 12430), (6710, 11752), (6893, 11440), (7345, 10736), (7930, 9944), (8723, 9040)]