1900396720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{1301}}^1$

素因数の和:1395

約数の個数: 120

約数和(自身を含む): 4809535920

約数和(自身を除く): 2909139200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 961, 1178, 1240, 1301, 1520, 1922, 2356, 2480, 2602, 2945, 3844, 4712, 4805, 5204, 5890, 6505, 7688, 9424, 9610, 10408, 11780, 13010, 15376, 18259, 19220, 20816, 23560, 24719, 26020, 36518, 38440, 40331, 47120, 49438, 52040, 73036, 76880, 80662, 91295, 98876, 104080, 123595, 146072, 161324, 182590, 197752, 201655, 247190, 292144, 322648, 365180, 395504, 403310, 494380, 645296, 730360, 766289, 806620, 988760, 1250261, 1460720, 1532578, 1613240, 1977520, 2500522, 3065156, 3226480, 3831445, 5001044, 6130312, 6251305, 7662890, 10002088, 12260624, 12502610, 15325780, 20004176, 23754959, 25005220, 30651560, 47509918, 50010440, 61303120, 95019836, 100020880, 118774795, 190039672, 237549590, 380079344, 475099180, 950198360, 1900396720]

約数ペア:

[(1, 1900396720), (2, 950198360), (4, 475099180), (5, 380079344), (8, 237549590), (10, 190039672), (16, 118774795), (19, 100020880), (20, 95019836), (31, 61303120), (38, 50010440), (40, 47509918), (62, 30651560), (76, 25005220), (80, 23754959), (95, 20004176), (124, 15325780), (152, 12502610), (155, 12260624), (190, 10002088), (248, 7662890), (304, 6251305), (310, 6130312), (380, 5001044), (496, 3831445), (589, 3226480), (620, 3065156), (760, 2500522), (961, 1977520), (1178, 1613240), (1240, 1532578), (1301, 1460720), (1520, 1250261), (1922, 988760), (2356, 806620), (2480, 766289), (2602, 730360), (2945, 645296), (3844, 494380), (4712, 403310), (4805, 395504), (5204, 365180), (5890, 322648), (6505, 292144), (7688, 247190), (9424, 201655), (9610, 197752), (10408, 182590), (11780, 161324), (13010, 146072), (15376, 123595), (18259, 104080), (19220, 98876), (20816, 91295), (23560, 80662), (24719, 76880), (26020, 73036), (36518, 52040), (38440, 49438), (40331, 47120)]