721315320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{2861}}^1$

素因数の和:3077

約数の個数: 128

約数和(自身を含む): 2373857280

約数和(自身を除く): 1652541960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 191, 220, 264, 330, 382, 440, 573, 660, 764, 955, 1146, 1320, 1528, 1910, 2101, 2292, 2861, 2865, 3820, 4202, 4584, 5722, 5730, 6303, 7640, 8404, 8583, 10505, 11444, 11460, 12606, 14305, 16808, 17166, 21010, 22888, 22920, 25212, 28610, 31471, 31515, 34332, 42020, 42915, 50424, 57220, 62942, 63030, 68664, 84040, 85830, 94413, 114440, 125884, 126060, 157355, 171660, 188826, 251768, 252120, 314710, 343320, 377652, 472065, 546451, 629420, 755304, 944130, 1092902, 1258840, 1639353, 1888260, 2185804, 2732255, 3278706, 3776520, 4371608, 5464510, 6010961, 6557412, 8196765, 10929020, 12021922, 13114824, 16393530, 18032883, 21858040, 24043844, 30054805, 32787060, 36065766, 48087688, 60109610, 65574120, 72131532, 90164415, 120219220, 144263064, 180328830, 240438440, 360657660, 721315320]

約数ペア:

[(1, 721315320), (2, 360657660), (3, 240438440), (4, 180328830), (5, 144263064), (6, 120219220), (8, 90164415), (10, 72131532), (11, 65574120), (12, 60109610), (15, 48087688), (20, 36065766), (22, 32787060), (24, 30054805), (30, 24043844), (33, 21858040), (40, 18032883), (44, 16393530), (55, 13114824), (60, 12021922), (66, 10929020), (88, 8196765), (110, 6557412), (120, 6010961), (132, 5464510), (165, 4371608), (191, 3776520), (220, 3278706), (264, 2732255), (330, 2185804), (382, 1888260), (440, 1639353), (573, 1258840), (660, 1092902), (764, 944130), (955, 755304), (1146, 629420), (1320, 546451), (1528, 472065), (1910, 377652), (2101, 343320), (2292, 314710), (2861, 252120), (2865, 251768), (3820, 188826), (4202, 171660), (4584, 157355), (5722, 126060), (5730, 125884), (6303, 114440), (7640, 94413), (8404, 85830), (8583, 84040), (10505, 68664), (11444, 63030), (11460, 62942), (12606, 57220), (14305, 50424), (16808, 42915), (17166, 42020), (21010, 34332), (22888, 31515), (22920, 31471), (25212, 28610)]