399248520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{15919}}^1$

素因数の和:15963

約数の個数: 128

約数和(自身を含む): 1375488000

約数和(自身を除く): 976239480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 19, 20, 22, 24, 30, 33, 38, 40, 44, 55, 57, 60, 66, 76, 88, 95, 110, 114, 120, 132, 152, 165, 190, 209, 220, 228, 264, 285, 330, 380, 418, 440, 456, 570, 627, 660, 760, 836, 1045, 1140, 1254, 1320, 1672, 2090, 2280, 2508, 3135, 4180, 5016, 6270, 8360, 12540, 15919, 25080, 31838, 47757, 63676, 79595, 95514, 127352, 159190, 175109, 191028, 238785, 302461, 318380, 350218, 382056, 477570, 525327, 604922, 636760, 700436, 875545, 907383, 955140, 1050654, 1209844, 1400872, 1512305, 1751090, 1814766, 1910280, 2101308, 2419688, 2626635, 3024610, 3327071, 3502180, 3629532, 4202616, 4536915, 5253270, 6049220, 6654142, 7004360, 7259064, 9073830, 9981213, 10506540, 12098440, 13308284, 16635355, 18147660, 19962426, 21013080, 26616568, 33270710, 36295320, 39924852, 49906065, 66541420, 79849704, 99812130, 133082840, 199624260, 399248520]

約数ペア:

[(1, 399248520), (2, 199624260), (3, 133082840), (4, 99812130), (5, 79849704), (6, 66541420), (8, 49906065), (10, 39924852), (11, 36295320), (12, 33270710), (15, 26616568), (19, 21013080), (20, 19962426), (22, 18147660), (24, 16635355), (30, 13308284), (33, 12098440), (38, 10506540), (40, 9981213), (44, 9073830), (55, 7259064), (57, 7004360), (60, 6654142), (66, 6049220), (76, 5253270), (88, 4536915), (95, 4202616), (110, 3629532), (114, 3502180), (120, 3327071), (132, 3024610), (152, 2626635), (165, 2419688), (190, 2101308), (209, 1910280), (220, 1814766), (228, 1751090), (264, 1512305), (285, 1400872), (330, 1209844), (380, 1050654), (418, 955140), (440, 907383), (456, 875545), (570, 700436), (627, 636760), (660, 604922), (760, 525327), (836, 477570), (1045, 382056), (1140, 350218), (1254, 318380), (1320, 302461), (1672, 238785), (2090, 191028), (2280, 175109), (2508, 159190), (3135, 127352), (4180, 95514), (5016, 79595), (6270, 63676), (8360, 47757), (12540, 31838), (15919, 25080)]