221575560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1867}}^1$

素因数の和:1947

約数の個数: 128

約数和(自身を含む): 710138880

約数和(自身を除く): 488563320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 43, 46, 60, 69, 86, 92, 115, 120, 129, 138, 172, 184, 215, 230, 258, 276, 344, 345, 430, 460, 516, 552, 645, 690, 860, 920, 989, 1032, 1290, 1380, 1720, 1867, 1978, 2580, 2760, 2967, 3734, 3956, 4945, 5160, 5601, 5934, 7468, 7912, 9335, 9890, 11202, 11868, 14835, 14936, 18670, 19780, 22404, 23736, 28005, 29670, 37340, 39560, 42941, 44808, 56010, 59340, 74680, 80281, 85882, 112020, 118680, 128823, 160562, 171764, 214705, 224040, 240843, 257646, 321124, 343528, 401405, 429410, 481686, 515292, 642248, 644115, 802810, 858820, 963372, 1030584, 1204215, 1288230, 1605620, 1717640, 1846463, 1926744, 2408430, 2576460, 3211240, 3692926, 4816860, 5152920, 5539389, 7385852, 9232315, 9633720, 11078778, 14771704, 18464630, 22157556, 27696945, 36929260, 44315112, 55393890, 73858520, 110787780, 221575560]

約数ペア:

[(1, 221575560), (2, 110787780), (3, 73858520), (4, 55393890), (5, 44315112), (6, 36929260), (8, 27696945), (10, 22157556), (12, 18464630), (15, 14771704), (20, 11078778), (23, 9633720), (24, 9232315), (30, 7385852), (40, 5539389), (43, 5152920), (46, 4816860), (60, 3692926), (69, 3211240), (86, 2576460), (92, 2408430), (115, 1926744), (120, 1846463), (129, 1717640), (138, 1605620), (172, 1288230), (184, 1204215), (215, 1030584), (230, 963372), (258, 858820), (276, 802810), (344, 644115), (345, 642248), (430, 515292), (460, 481686), (516, 429410), (552, 401405), (645, 343528), (690, 321124), (860, 257646), (920, 240843), (989, 224040), (1032, 214705), (1290, 171764), (1380, 160562), (1720, 128823), (1867, 118680), (1978, 112020), (2580, 85882), (2760, 80281), (2967, 74680), (3734, 59340), (3956, 56010), (4945, 44808), (5160, 42941), (5601, 39560), (5934, 37340), (7468, 29670), (7912, 28005), (9335, 23736), (9890, 22404), (11202, 19780), (11868, 18670), (14835, 14936)]