400977140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^3\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:182

約数の個数: 96

約数和(自身を含む): 924403200

約数和(自身を除く): 523426060

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 79, 95, 148, 158, 185, 190, 316, 361, 370, 380, 395, 703, 722, 740, 790, 1406, 1444, 1501, 1580, 1805, 2812, 2923, 3002, 3515, 3610, 5846, 6004, 6859, 7030, 7220, 7505, 11692, 13357, 13718, 14060, 14615, 15010, 26714, 27436, 28519, 29230, 30020, 34295, 53428, 55537, 57038, 58460, 66785, 68590, 111074, 114076, 133570, 137180, 142595, 222148, 253783, 267140, 277685, 285190, 507566, 541861, 555370, 570380, 1015132, 1055203, 1083722, 1110740, 1268915, 2110406, 2167444, 2537830, 2709305, 4220812, 5075660, 5276015, 5418610, 10552030, 10837220, 20048857, 21104060, 40097714, 80195428, 100244285, 200488570, 400977140]

約数ペア:

[(1, 400977140), (2, 200488570), (4, 100244285), (5, 80195428), (10, 40097714), (19, 21104060), (20, 20048857), (37, 10837220), (38, 10552030), (74, 5418610), (76, 5276015), (79, 5075660), (95, 4220812), (148, 2709305), (158, 2537830), (185, 2167444), (190, 2110406), (316, 1268915), (361, 1110740), (370, 1083722), (380, 1055203), (395, 1015132), (703, 570380), (722, 555370), (740, 541861), (790, 507566), (1406, 285190), (1444, 277685), (1501, 267140), (1580, 253783), (1805, 222148), (2812, 142595), (2923, 137180), (3002, 133570), (3515, 114076), (3610, 111074), (5846, 68590), (6004, 66785), (6859, 58460), (7030, 57038), (7220, 55537), (7505, 53428), (11692, 34295), (13357, 30020), (13718, 29230), (14060, 28519), (14615, 27436), (15010, 26714)]