18791008040

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{1369607}}^1$

素因数の和:1369639

約数の個数: 64

約数和(自身を含む): 49305888000

約数和(自身を除く): 30514879960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 6860, 13720, 1369607, 2739214, 5478428, 6848035, 9587249, 10956856, 13696070, 19174498, 27392140, 38348996, 47936245, 54784280, 67110743, 76697992, 95872490, 134221486, 191744980, 268442972, 335553715, 383489960, 469775201, 536885944, 671107430, 939550402, 1342214860, 1879100804, 2348876005, 2684429720, 3758201608, 4697752010, 9395504020, 18791008040]

約数ペア:

[(1, 18791008040), (2, 9395504020), (4, 4697752010), (5, 3758201608), (7, 2684429720), (8, 2348876005), (10, 1879100804), (14, 1342214860), (20, 939550402), (28, 671107430), (35, 536885944), (40, 469775201), (49, 383489960), (56, 335553715), (70, 268442972), (98, 191744980), (140, 134221486), (196, 95872490), (245, 76697992), (280, 67110743), (343, 54784280), (392, 47936245), (490, 38348996), (686, 27392140), (980, 19174498), (1372, 13696070), (1715, 10956856), (1960, 9587249), (2744, 6848035), (3430, 5478428), (6860, 2739214), (13720, 1369607)]