19785840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4339}}^1$

素因数の和:4374

約数の個数: 80

約数和(自身を含む): 64579200

約数和(自身を除く): 44793360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4339, 4560, 8678, 13017, 17356, 21695, 26034, 34712, 43390, 52068, 65085, 69424, 82441, 86780, 104136, 130170, 164882, 173560, 208272, 247323, 260340, 329764, 347120, 412205, 494646, 520680, 659528, 824410, 989292, 1041360, 1236615, 1319056, 1648820, 1978584, 2473230, 3297640, 3957168, 4946460, 6595280, 9892920, 19785840]

約数ペア:

[(1, 19785840), (2, 9892920), (3, 6595280), (4, 4946460), (5, 3957168), (6, 3297640), (8, 2473230), (10, 1978584), (12, 1648820), (15, 1319056), (16, 1236615), (19, 1041360), (20, 989292), (24, 824410), (30, 659528), (38, 520680), (40, 494646), (48, 412205), (57, 347120), (60, 329764), (76, 260340), (80, 247323), (95, 208272), (114, 173560), (120, 164882), (152, 130170), (190, 104136), (228, 86780), (240, 82441), (285, 69424), (304, 65085), (380, 52068), (456, 43390), (570, 34712), (760, 26034), (912, 21695), (1140, 17356), (1520, 13017), (2280, 8678), (4339, 4560)]