208260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 687960

約数和(自身を除く): 479700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 89, 90, 117, 130, 156, 178, 180, 195, 234, 260, 267, 356, 390, 445, 468, 534, 585, 780, 801, 890, 1068, 1157, 1170, 1335, 1602, 1780, 2314, 2340, 2670, 3204, 3471, 4005, 4628, 5340, 5785, 6942, 8010, 10413, 11570, 13884, 16020, 17355, 20826, 23140, 34710, 41652, 52065, 69420, 104130, 208260]

約数ペア:

[(1, 208260), (2, 104130), (3, 69420), (4, 52065), (5, 41652), (6, 34710), (9, 23140), (10, 20826), (12, 17355), (13, 16020), (15, 13884), (18, 11570), (20, 10413), (26, 8010), (30, 6942), (36, 5785), (39, 5340), (45, 4628), (52, 4005), (60, 3471), (65, 3204), (78, 2670), (89, 2340), (90, 2314), (117, 1780), (130, 1602), (156, 1335), (178, 1170), (180, 1157), (195, 1068), (234, 890), (260, 801), (267, 780), (356, 585), (390, 534), (445, 468)]