4012920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:245

約数の個数: 96

約数和(自身を含む): 13309920

約数和(自身を除く): 9297000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 71, 72, 90, 120, 142, 157, 180, 213, 284, 314, 355, 360, 426, 471, 568, 628, 639, 710, 785, 852, 942, 1065, 1256, 1278, 1413, 1420, 1570, 1704, 1884, 2130, 2355, 2556, 2826, 2840, 3140, 3195, 3768, 4260, 4710, 5112, 5652, 6280, 6390, 7065, 8520, 9420, 11147, 11304, 12780, 14130, 18840, 22294, 25560, 28260, 33441, 44588, 55735, 56520, 66882, 89176, 100323, 111470, 133764, 167205, 200646, 222940, 267528, 334410, 401292, 445880, 501615, 668820, 802584, 1003230, 1337640, 2006460, 4012920]

約数ペア:

[(1, 4012920), (2, 2006460), (3, 1337640), (4, 1003230), (5, 802584), (6, 668820), (8, 501615), (9, 445880), (10, 401292), (12, 334410), (15, 267528), (18, 222940), (20, 200646), (24, 167205), (30, 133764), (36, 111470), (40, 100323), (45, 89176), (60, 66882), (71, 56520), (72, 55735), (90, 44588), (120, 33441), (142, 28260), (157, 25560), (180, 22294), (213, 18840), (284, 14130), (314, 12780), (355, 11304), (360, 11147), (426, 9420), (471, 8520), (568, 7065), (628, 6390), (639, 6280), (710, 5652), (785, 5112), (852, 4710), (942, 4260), (1065, 3768), (1256, 3195), (1278, 3140), (1413, 2840), (1420, 2826), (1570, 2556), (1704, 2355), (1884, 2130)]