78780840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{317}}^1$

素因数の和:459

約数の個数: 128

約数和(自身を含む): 251856000

約数和(自身を除く): 173075160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 109, 114, 120, 152, 190, 218, 228, 285, 317, 327, 380, 436, 456, 545, 570, 634, 654, 760, 872, 951, 1090, 1140, 1268, 1308, 1585, 1635, 1902, 2071, 2180, 2280, 2536, 2616, 3170, 3270, 3804, 4142, 4360, 4755, 6023, 6213, 6340, 6540, 7608, 8284, 9510, 10355, 12046, 12426, 12680, 13080, 16568, 18069, 19020, 20710, 24092, 24852, 30115, 31065, 34553, 36138, 38040, 41420, 48184, 49704, 60230, 62130, 69106, 72276, 82840, 90345, 103659, 120460, 124260, 138212, 144552, 172765, 180690, 207318, 240920, 248520, 276424, 345530, 361380, 414636, 518295, 656507, 691060, 722760, 829272, 1036590, 1313014, 1382120, 1969521, 2073180, 2626028, 3282535, 3939042, 4146360, 5252056, 6565070, 7878084, 9847605, 13130140, 15756168, 19695210, 26260280, 39390420, 78780840]

約数ペア:

[(1, 78780840), (2, 39390420), (3, 26260280), (4, 19695210), (5, 15756168), (6, 13130140), (8, 9847605), (10, 7878084), (12, 6565070), (15, 5252056), (19, 4146360), (20, 3939042), (24, 3282535), (30, 2626028), (38, 2073180), (40, 1969521), (57, 1382120), (60, 1313014), (76, 1036590), (95, 829272), (109, 722760), (114, 691060), (120, 656507), (152, 518295), (190, 414636), (218, 361380), (228, 345530), (285, 276424), (317, 248520), (327, 240920), (380, 207318), (436, 180690), (456, 172765), (545, 144552), (570, 138212), (634, 124260), (654, 120460), (760, 103659), (872, 90345), (951, 82840), (1090, 72276), (1140, 69106), (1268, 62130), (1308, 60230), (1585, 49704), (1635, 48184), (1902, 41420), (2071, 38040), (2180, 36138), (2280, 34553), (2536, 31065), (2616, 30115), (3170, 24852), (3270, 24092), (3804, 20710), (4142, 19020), (4360, 18069), (4755, 16568), (6023, 13080), (6213, 12680), (6340, 12426), (6540, 12046), (7608, 10355), (8284, 9510)]