378478260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{457}}^1$

素因数の和:622

約数の個数: 144

約数和(自身を含む): 1188323136

約数和(自身を除く): 809844876

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 107, 129, 172, 180, 214, 215, 258, 321, 387, 428, 430, 457, 516, 535, 642, 645, 774, 860, 914, 963, 1070, 1284, 1290, 1371, 1548, 1605, 1828, 1926, 1935, 2140, 2285, 2580, 2742, 3210, 3852, 3870, 4113, 4570, 4601, 4815, 5484, 6420, 6855, 7740, 8226, 9140, 9202, 9630, 13710, 13803, 16452, 18404, 19260, 19651, 20565, 23005, 27420, 27606, 39302, 41130, 41409, 46010, 48899, 55212, 58953, 69015, 78604, 82260, 82818, 92020, 97798, 98255, 117906, 138030, 146697, 165636, 176859, 195596, 196510, 207045, 235812, 244495, 276060, 293394, 294765, 353718, 393020, 414090, 440091, 488990, 586788, 589530, 707436, 733485, 828180, 880182, 884295, 977980, 1179060, 1466970, 1760364, 1768590, 2102657, 2200455, 2933940, 3537180, 4205314, 4400910, 6307971, 8410628, 8801820, 10513285, 12615942, 18923913, 21026570, 25231884, 31539855, 37847826, 42053140, 63079710, 75695652, 94619565, 126159420, 189239130, 378478260]

約数ペア:

[(1, 378478260), (2, 189239130), (3, 126159420), (4, 94619565), (5, 75695652), (6, 63079710), (9, 42053140), (10, 37847826), (12, 31539855), (15, 25231884), (18, 21026570), (20, 18923913), (30, 12615942), (36, 10513285), (43, 8801820), (45, 8410628), (60, 6307971), (86, 4400910), (90, 4205314), (107, 3537180), (129, 2933940), (172, 2200455), (180, 2102657), (214, 1768590), (215, 1760364), (258, 1466970), (321, 1179060), (387, 977980), (428, 884295), (430, 880182), (457, 828180), (516, 733485), (535, 707436), (642, 589530), (645, 586788), (774, 488990), (860, 440091), (914, 414090), (963, 393020), (1070, 353718), (1284, 294765), (1290, 293394), (1371, 276060), (1548, 244495), (1605, 235812), (1828, 207045), (1926, 196510), (1935, 195596), (2140, 176859), (2285, 165636), (2580, 146697), (2742, 138030), (3210, 117906), (3852, 98255), (3870, 97798), (4113, 92020), (4570, 82818), (4601, 82260), (4815, 78604), (5484, 69015), (6420, 58953), (6855, 55212), (7740, 48899), (8226, 46010), (9140, 41409), (9202, 41130), (9630, 39302), (13710, 27606), (13803, 27420), (16452, 23005), (18404, 20565), (19260, 19651)]