398928240

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{20521}}^1$

素因数の和:20549

約数の個数: 120

約数和(自身を含む): 1389421488

約数和(自身を除く): 990493248

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 972, 1080, 1215, 1296, 1620, 1944, 2160, 2430, 3240, 3888, 4860, 6480, 9720, 19440, 20521, 41042, 61563, 82084, 102605, 123126, 164168, 184689, 205210, 246252, 307815, 328336, 369378, 410420, 492504, 554067, 615630, 738756, 820840, 923445, 985008, 1108134, 1231260, 1477512, 1641680, 1662201, 1846890, 2216268, 2462520, 2770335, 2955024, 3324402, 3693780, 4432536, 4925040, 4986603, 5540670, 6648804, 7387560, 8311005, 8865072, 9973206, 11081340, 13297608, 14775120, 16622010, 19946412, 22162680, 24933015, 26595216, 33244020, 39892824, 44325360, 49866030, 66488040, 79785648, 99732060, 132976080, 199464120, 398928240]

約数ペア:

[(1, 398928240), (2, 199464120), (3, 132976080), (4, 99732060), (5, 79785648), (6, 66488040), (8, 49866030), (9, 44325360), (10, 39892824), (12, 33244020), (15, 26595216), (16, 24933015), (18, 22162680), (20, 19946412), (24, 16622010), (27, 14775120), (30, 13297608), (36, 11081340), (40, 9973206), (45, 8865072), (48, 8311005), (54, 7387560), (60, 6648804), (72, 5540670), (80, 4986603), (81, 4925040), (90, 4432536), (108, 3693780), (120, 3324402), (135, 2955024), (144, 2770335), (162, 2462520), (180, 2216268), (216, 1846890), (240, 1662201), (243, 1641680), (270, 1477512), (324, 1231260), (360, 1108134), (405, 985008), (432, 923445), (486, 820840), (540, 738756), (648, 615630), (720, 554067), (810, 492504), (972, 410420), (1080, 369378), (1215, 328336), (1296, 307815), (1620, 246252), (1944, 205210), (2160, 184689), (2430, 164168), (3240, 123126), (3888, 102605), (4860, 82084), (6480, 61563), (9720, 41042), (19440, 20521)]