128890680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56531}}^1$

素因数の和:56564

約数の個数: 64

約数和(自身を含む): 407030400

約数和(自身を除く): 278139720

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, 456, 570, 760, 1140, 2280, 56531, 113062, 169593, 226124, 282655, 339186, 452248, 565310, 678372, 847965, 1074089, 1130620, 1356744, 1695930, 2148178, 2261240, 3222267, 3391860, 4296356, 5370445, 6444534, 6783720, 8592712, 10740890, 12889068, 16111335, 21481780, 25778136, 32222670, 42963560, 64445340, 128890680]

約数ペア:

[(1, 128890680), (2, 64445340), (3, 42963560), (4, 32222670), (5, 25778136), (6, 21481780), (8, 16111335), (10, 12889068), (12, 10740890), (15, 8592712), (19, 6783720), (20, 6444534), (24, 5370445), (30, 4296356), (38, 3391860), (40, 3222267), (57, 2261240), (60, 2148178), (76, 1695930), (95, 1356744), (114, 1130620), (120, 1074089), (152, 847965), (190, 678372), (228, 565310), (285, 452248), (380, 339186), (456, 282655), (570, 226124), (760, 169593), (1140, 113062), (2280, 56531)]