172906840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 435456000

約数和(自身を除く): 262549160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 41, 62, 76, 82, 95, 124, 152, 155, 164, 179, 190, 205, 248, 310, 328, 358, 380, 410, 589, 620, 716, 760, 779, 820, 895, 1178, 1240, 1271, 1432, 1558, 1640, 1790, 2356, 2542, 2945, 3116, 3401, 3580, 3895, 4712, 5084, 5549, 5890, 6232, 6355, 6802, 7160, 7339, 7790, 10168, 11098, 11780, 12710, 13604, 14678, 15580, 17005, 22196, 23560, 24149, 25420, 27208, 27745, 29356, 31160, 34010, 36695, 44392, 48298, 50840, 55490, 58712, 68020, 73390, 96596, 105431, 110980, 120745, 136040, 139441, 146780, 193192, 210862, 221960, 227509, 241490, 278882, 293560, 421724, 455018, 482980, 527155, 557764, 697205, 843448, 910036, 965960, 1054310, 1115528, 1137545, 1394410, 1820072, 2108620, 2275090, 2788820, 4217240, 4322671, 4550180, 5577640, 8645342, 9100360, 17290684, 21613355, 34581368, 43226710, 86453420, 172906840]

約数ペア:

[(1, 172906840), (2, 86453420), (4, 43226710), (5, 34581368), (8, 21613355), (10, 17290684), (19, 9100360), (20, 8645342), (31, 5577640), (38, 4550180), (40, 4322671), (41, 4217240), (62, 2788820), (76, 2275090), (82, 2108620), (95, 1820072), (124, 1394410), (152, 1137545), (155, 1115528), (164, 1054310), (179, 965960), (190, 910036), (205, 843448), (248, 697205), (310, 557764), (328, 527155), (358, 482980), (380, 455018), (410, 421724), (589, 293560), (620, 278882), (716, 241490), (760, 227509), (779, 221960), (820, 210862), (895, 193192), (1178, 146780), (1240, 139441), (1271, 136040), (1432, 120745), (1558, 110980), (1640, 105431), (1790, 96596), (2356, 73390), (2542, 68020), (2945, 58712), (3116, 55490), (3401, 50840), (3580, 48298), (3895, 44392), (4712, 36695), (5084, 34010), (5549, 31160), (5890, 29356), (6232, 27745), (6355, 27208), (6802, 25420), (7160, 24149), (7339, 23560), (7790, 22196), (10168, 17005), (11098, 15580), (11780, 14678), (12710, 13604)]