281138520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10601}}^1$

素因数の和:10645

約数の個数: 128

約数和(自身を含む): 961813440

約数和(自身を除く): 680674920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 24, 26, 30, 34, 39, 40, 51, 52, 60, 65, 68, 78, 85, 102, 104, 120, 130, 136, 156, 170, 195, 204, 221, 255, 260, 312, 340, 390, 408, 442, 510, 520, 663, 680, 780, 884, 1020, 1105, 1326, 1560, 1768, 2040, 2210, 2652, 3315, 4420, 5304, 6630, 8840, 10601, 13260, 21202, 26520, 31803, 42404, 53005, 63606, 84808, 106010, 127212, 137813, 159015, 180217, 212020, 254424, 275626, 318030, 360434, 413439, 424040, 540651, 551252, 636060, 689065, 720868, 826878, 901085, 1081302, 1102504, 1272120, 1378130, 1441736, 1653756, 1802170, 2067195, 2162604, 2342821, 2703255, 2756260, 3307512, 3604340, 4134390, 4325208, 4685642, 5406510, 5512520, 7028463, 7208680, 8268780, 9371284, 10813020, 11714105, 14056926, 16537560, 18742568, 21626040, 23428210, 28113852, 35142315, 46856420, 56227704, 70284630, 93712840, 140569260, 281138520]

約数ペア:

[(1, 281138520), (2, 140569260), (3, 93712840), (4, 70284630), (5, 56227704), (6, 46856420), (8, 35142315), (10, 28113852), (12, 23428210), (13, 21626040), (15, 18742568), (17, 16537560), (20, 14056926), (24, 11714105), (26, 10813020), (30, 9371284), (34, 8268780), (39, 7208680), (40, 7028463), (51, 5512520), (52, 5406510), (60, 4685642), (65, 4325208), (68, 4134390), (78, 3604340), (85, 3307512), (102, 2756260), (104, 2703255), (120, 2342821), (130, 2162604), (136, 2067195), (156, 1802170), (170, 1653756), (195, 1441736), (204, 1378130), (221, 1272120), (255, 1102504), (260, 1081302), (312, 901085), (340, 826878), (390, 720868), (408, 689065), (442, 636060), (510, 551252), (520, 540651), (663, 424040), (680, 413439), (780, 360434), (884, 318030), (1020, 275626), (1105, 254424), (1326, 212020), (1560, 180217), (1768, 159015), (2040, 137813), (2210, 127212), (2652, 106010), (3315, 84808), (4420, 63606), (5304, 53005), (6630, 42404), (8840, 31803), (10601, 26520), (13260, 21202)]