281444520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19709}}^1$

素因数の和:19747

約数の個数: 128

約数和(自身を含む): 1021766400

約数和(自身を除く): 740321880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1785, 2040, 2380, 2856, 3570, 4760, 7140, 14280, 19709, 39418, 59127, 78836, 98545, 118254, 137963, 157672, 197090, 236508, 275926, 295635, 335053, 394180, 413889, 473016, 551852, 591270, 670106, 689815, 788360, 827778, 1005159, 1103704, 1182540, 1340212, 1379630, 1655556, 1675265, 2010318, 2069445, 2345371, 2365080, 2680424, 2759260, 3311112, 3350530, 4020636, 4138890, 4690742, 5025795, 5518520, 6701060, 7036113, 8041272, 8277780, 9381484, 10051590, 11726855, 13402120, 14072226, 16555560, 18762968, 20103180, 23453710, 28144452, 35180565, 40206360, 46907420, 56288904, 70361130, 93814840, 140722260, 281444520]

約数ペア:

[(1, 281444520), (2, 140722260), (3, 93814840), (4, 70361130), (5, 56288904), (6, 46907420), (7, 40206360), (8, 35180565), (10, 28144452), (12, 23453710), (14, 20103180), (15, 18762968), (17, 16555560), (20, 14072226), (21, 13402120), (24, 11726855), (28, 10051590), (30, 9381484), (34, 8277780), (35, 8041272), (40, 7036113), (42, 6701060), (51, 5518520), (56, 5025795), (60, 4690742), (68, 4138890), (70, 4020636), (84, 3350530), (85, 3311112), (102, 2759260), (105, 2680424), (119, 2365080), (120, 2345371), (136, 2069445), (140, 2010318), (168, 1675265), (170, 1655556), (204, 1379630), (210, 1340212), (238, 1182540), (255, 1103704), (280, 1005159), (340, 827778), (357, 788360), (408, 689815), (420, 670106), (476, 591270), (510, 551852), (595, 473016), (680, 413889), (714, 394180), (840, 335053), (952, 295635), (1020, 275926), (1190, 236508), (1428, 197090), (1785, 157672), (2040, 137963), (2380, 118254), (2856, 98545), (3570, 78836), (4760, 59127), (7140, 39418), (14280, 19709)]